* sound: USB: line6: use dynamic buffers
@ 2019-04-28 16:04 Greg Kroah-Hartman
2019-04-28 16:04 ` [PATCH] " Greg Kroah-Hartman
2019-04-28 16:42 ` Takashi Iwai
0 siblings, 2 replies; 6+ messages in thread
From: Greg Kroah-Hartman @ 2019-04-28 16:04 UTC (permalink / raw)
To: Jaroslav Kysela, Takashi Iwai
Cc: Arnd Bergmann, alsa-devel, linux-usb, linux-kernel
The line6 driver uses a lot of USB buffers off of the stack, which is
not allowed on many systems, causing the driver to crash on some of
them. Fix this up by dynamically allocating the buffers with kmalloc()
which allows for proper DMA-able memory.
Reported-by: Christo Gouws <gouws.christo@gmail.com>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Christo Gouws <gouws.christo@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/usb/line6/driver.c | 60 ++++++++++++++++++++++++++-------------------
sound/usb/line6/podhd.c | 21 +++++++++------
sound/usb/line6/toneport.c | 23 ++++++++++++-----
3 files changed, 64 insertions(+), 40 deletions(-)
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -351,12 +351,16 @@ int line6_read_data(struct usb_line6 *li
{
struct usb_device *usbdev = line6->usbdev;
int ret;
- unsigned char len;
+ unsigned char *len;
unsigned count;
if (address > 0xffff || datalen > 0xff)
return -EINVAL;
+ len = kmalloc(sizeof(*len), GFP_KERNEL);
+ if (!len)
+ return -ENOMEM;
+
/* query the serial number: */
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
@@ -365,7 +369,7 @@ int line6_read_data(struct usb_line6 *li
if (ret < 0) {
dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
/* Wait for data length. We'll get 0xff until length arrives. */
@@ -375,28 +379,29 @@ int line6_read_data(struct usb_line6 *li
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
USB_DIR_IN,
- 0x0012, 0x0000, &len, 1,
+ 0x0012, 0x0000, len, 1,
LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev,
"receive length failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
- if (len != 0xff)
+ if (*len != 0xff)
break;
}
- if (len == 0xff) {
+ ret = -EIO;
+ if (*len == 0xff) {
dev_err(line6->ifcdev, "read failed after %d retries\n",
count);
- return -EIO;
- } else if (len != datalen) {
+ goto exit;
+ } else if (*len != datalen) {
/* should be equal or something went wrong */
dev_err(line6->ifcdev,
"length mismatch (expected %d, got %d)\n",
- (int)datalen, (int)len);
- return -EIO;
+ (int)datalen, (int)*len);
+ goto exit;
}
/* receive the result: */
@@ -405,12 +410,12 @@ int line6_read_data(struct usb_line6 *li
0x0013, 0x0000, data, datalen,
LINE6_TIMEOUT * HZ);
- if (ret < 0) {
+ if (ret < 0)
dev_err(line6->ifcdev, "read failed (error %d)\n", ret);
- return ret;
- }
- return 0;
+exit:
+ kfree(len);
+ return ret;
}
EXPORT_SYMBOL_GPL(line6_read_data);
@@ -422,12 +427,16 @@ int line6_write_data(struct usb_line6 *l
{
struct usb_device *usbdev = line6->usbdev;
int ret;
- unsigned char status;
+ unsigned char *status;
int count;
if (address > 0xffff || datalen > 0xffff)
return -EINVAL;
+ status = kmalloc(sizeof(*status), GFP_KERNEL);
+ if (!status)
+ return -ENOMEM;
+
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
0x0022, address, data, datalen,
@@ -436,7 +445,7 @@ int line6_write_data(struct usb_line6 *l
if (ret < 0) {
dev_err(line6->ifcdev,
"write request failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) {
@@ -447,28 +456,29 @@ int line6_write_data(struct usb_line6 *l
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
USB_DIR_IN,
0x0012, 0x0000,
- &status, 1, LINE6_TIMEOUT * HZ);
+ status, 1, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev,
"receiving status failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
- if (status != 0xff)
+ if (*status != 0xff)
break;
}
- if (status == 0xff) {
+ if (*status == 0xff) {
dev_err(line6->ifcdev, "write failed after %d retries\n",
count);
- return -EIO;
- } else if (status != 0) {
+ ret = -EIO;
+ } else if (*status != 0) {
dev_err(line6->ifcdev, "write failed (error %d)\n", ret);
- return -EIO;
+ ret = -EIO;
}
-
- return 0;
+exit:
+ kfree(status);
+ return ret;
}
EXPORT_SYMBOL_GPL(line6_write_data);
--- a/sound/usb/line6/podhd.c
+++ b/sound/usb/line6/podhd.c
@@ -225,28 +225,32 @@ static void podhd_startup_start_workqueu
static int podhd_dev_start(struct usb_line6_podhd *pod)
{
int ret;
- u8 init_bytes[8];
+ u8 *init_bytes;
int i;
struct usb_device *usbdev = pod->line6.usbdev;
+ init_bytes = kmalloc(8, GFP_KERNEL);
+ if (!init_bytes)
+ return -ENOMEM;
+
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
0x67, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
0x11, 0,
NULL, 0, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(pod->line6.ifcdev, "read request failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
/* NOTE: looks like some kind of ping message */
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
0x11, 0x0,
- &init_bytes, 3, LINE6_TIMEOUT * HZ);
+ init_bytes, 3, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(pod->line6.ifcdev,
"receive length failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
pod->firmware_version =
@@ -255,7 +259,7 @@ static int podhd_dev_start(struct usb_li
for (i = 0; i <= 16; i++) {
ret = line6_read_data(&pod->line6, 0xf000 + 0x08 * i, init_bytes, 8);
if (ret < 0)
- return ret;
+ goto exit;
}
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
@@ -263,10 +267,9 @@ static int podhd_dev_start(struct usb_li
USB_TYPE_STANDARD | USB_RECIP_DEVICE | USB_DIR_OUT,
1, 0,
NULL, 0, LINE6_TIMEOUT * HZ);
- if (ret < 0)
- return ret;
-
- return 0;
+exit:
+ kfree(init_bytes);
+ return ret;
}
static void podhd_startup_workqueue(struct work_struct *work)
--- a/sound/usb/line6/toneport.c
+++ b/sound/usb/line6/toneport.c
@@ -365,16 +365,21 @@ static bool toneport_has_source_select(s
/*
Setup Toneport device.
*/
-static void toneport_setup(struct usb_line6_toneport *toneport)
+static int toneport_setup(struct usb_line6_toneport *toneport)
{
- u32 ticks;
+ u32 *ticks;
struct usb_line6 *line6 = &toneport->line6;
struct usb_device *usbdev = line6->usbdev;
+ ticks = kmalloc(sizeof(*ticks), GFP_KERNEL);
+ if (!ticks)
+ return -ENOMEM;
+
/* sync time on device with host: */
/* note: 32-bit timestamps overflow in year 2106 */
- ticks = (u32)ktime_get_real_seconds();
- line6_write_data(line6, 0x80c6, &ticks, 4);
+ *ticks = (u32)ktime_get_real_seconds();
+ line6_write_data(line6, 0x80c6, ticks, 4);
+ kfree(ticks);
/* enable device: */
toneport_send_cmd(usbdev, 0x0301, 0x0000);
@@ -451,7 +456,9 @@ static int toneport_init(struct usb_line
return err;
}
- toneport_setup(toneport);
+ err = toneport_setup(toneport);
+ if (err)
+ return err;
/* register audio system: */
return snd_card_register(line6->card);
@@ -463,7 +470,11 @@ static int toneport_init(struct usb_line
*/
static int toneport_reset_resume(struct usb_interface *interface)
{
- toneport_setup(usb_get_intfdata(interface));
+ int err;
+
+ err = toneport_setup(usb_get_intfdata(interface));
+ if (err)
+ return err;
return line6_resume(interface);
}
#endif
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] sound: USB: line6: use dynamic buffers
2019-04-28 16:04 sound: USB: line6: use dynamic buffers Greg Kroah-Hartman
@ 2019-04-28 16:04 ` Greg Kroah-Hartman
2019-04-28 16:42 ` Takashi Iwai
1 sibling, 0 replies; 6+ messages in thread
From: Greg Kroah-Hartman @ 2019-04-28 16:04 UTC (permalink / raw)
To: Jaroslav Kysela, Takashi Iwai
Cc: Arnd Bergmann, alsa-devel, linux-usb, linux-kernel
The line6 driver uses a lot of USB buffers off of the stack, which is
not allowed on many systems, causing the driver to crash on some of
them. Fix this up by dynamically allocating the buffers with kmalloc()
which allows for proper DMA-able memory.
Reported-by: Christo Gouws <gouws.christo@gmail.com>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Christo Gouws <gouws.christo@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/usb/line6/driver.c | 60 ++++++++++++++++++++++++++-------------------
sound/usb/line6/podhd.c | 21 +++++++++------
sound/usb/line6/toneport.c | 23 ++++++++++++-----
3 files changed, 64 insertions(+), 40 deletions(-)
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -351,12 +351,16 @@ int line6_read_data(struct usb_line6 *li
{
struct usb_device *usbdev = line6->usbdev;
int ret;
- unsigned char len;
+ unsigned char *len;
unsigned count;
if (address > 0xffff || datalen > 0xff)
return -EINVAL;
+ len = kmalloc(sizeof(*len), GFP_KERNEL);
+ if (!len)
+ return -ENOMEM;
+
/* query the serial number: */
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
@@ -365,7 +369,7 @@ int line6_read_data(struct usb_line6 *li
if (ret < 0) {
dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
/* Wait for data length. We'll get 0xff until length arrives. */
@@ -375,28 +379,29 @@ int line6_read_data(struct usb_line6 *li
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
USB_DIR_IN,
- 0x0012, 0x0000, &len, 1,
+ 0x0012, 0x0000, len, 1,
LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev,
"receive length failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
- if (len != 0xff)
+ if (*len != 0xff)
break;
}
- if (len == 0xff) {
+ ret = -EIO;
+ if (*len == 0xff) {
dev_err(line6->ifcdev, "read failed after %d retries\n",
count);
- return -EIO;
- } else if (len != datalen) {
+ goto exit;
+ } else if (*len != datalen) {
/* should be equal or something went wrong */
dev_err(line6->ifcdev,
"length mismatch (expected %d, got %d)\n",
- (int)datalen, (int)len);
- return -EIO;
+ (int)datalen, (int)*len);
+ goto exit;
}
/* receive the result: */
@@ -405,12 +410,12 @@ int line6_read_data(struct usb_line6 *li
0x0013, 0x0000, data, datalen,
LINE6_TIMEOUT * HZ);
- if (ret < 0) {
+ if (ret < 0)
dev_err(line6->ifcdev, "read failed (error %d)\n", ret);
- return ret;
- }
- return 0;
+exit:
+ kfree(len);
+ return ret;
}
EXPORT_SYMBOL_GPL(line6_read_data);
@@ -422,12 +427,16 @@ int line6_write_data(struct usb_line6 *l
{
struct usb_device *usbdev = line6->usbdev;
int ret;
- unsigned char status;
+ unsigned char *status;
int count;
if (address > 0xffff || datalen > 0xffff)
return -EINVAL;
+ status = kmalloc(sizeof(*status), GFP_KERNEL);
+ if (!status)
+ return -ENOMEM;
+
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
0x0022, address, data, datalen,
@@ -436,7 +445,7 @@ int line6_write_data(struct usb_line6 *l
if (ret < 0) {
dev_err(line6->ifcdev,
"write request failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) {
@@ -447,28 +456,29 @@ int line6_write_data(struct usb_line6 *l
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
USB_DIR_IN,
0x0012, 0x0000,
- &status, 1, LINE6_TIMEOUT * HZ);
+ status, 1, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev,
"receiving status failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
- if (status != 0xff)
+ if (*status != 0xff)
break;
}
- if (status == 0xff) {
+ if (*status == 0xff) {
dev_err(line6->ifcdev, "write failed after %d retries\n",
count);
- return -EIO;
- } else if (status != 0) {
+ ret = -EIO;
+ } else if (*status != 0) {
dev_err(line6->ifcdev, "write failed (error %d)\n", ret);
- return -EIO;
+ ret = -EIO;
}
-
- return 0;
+exit:
+ kfree(status);
+ return ret;
}
EXPORT_SYMBOL_GPL(line6_write_data);
--- a/sound/usb/line6/podhd.c
+++ b/sound/usb/line6/podhd.c
@@ -225,28 +225,32 @@ static void podhd_startup_start_workqueu
static int podhd_dev_start(struct usb_line6_podhd *pod)
{
int ret;
- u8 init_bytes[8];
+ u8 *init_bytes;
int i;
struct usb_device *usbdev = pod->line6.usbdev;
+ init_bytes = kmalloc(8, GFP_KERNEL);
+ if (!init_bytes)
+ return -ENOMEM;
+
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
0x67, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
0x11, 0,
NULL, 0, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(pod->line6.ifcdev, "read request failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
/* NOTE: looks like some kind of ping message */
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
0x11, 0x0,
- &init_bytes, 3, LINE6_TIMEOUT * HZ);
+ init_bytes, 3, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(pod->line6.ifcdev,
"receive length failed (error %d)\n", ret);
- return ret;
+ goto exit;
}
pod->firmware_version =
@@ -255,7 +259,7 @@ static int podhd_dev_start(struct usb_li
for (i = 0; i <= 16; i++) {
ret = line6_read_data(&pod->line6, 0xf000 + 0x08 * i, init_bytes, 8);
if (ret < 0)
- return ret;
+ goto exit;
}
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
@@ -263,10 +267,9 @@ static int podhd_dev_start(struct usb_li
USB_TYPE_STANDARD | USB_RECIP_DEVICE | USB_DIR_OUT,
1, 0,
NULL, 0, LINE6_TIMEOUT * HZ);
- if (ret < 0)
- return ret;
-
- return 0;
+exit:
+ kfree(init_bytes);
+ return ret;
}
static void podhd_startup_workqueue(struct work_struct *work)
--- a/sound/usb/line6/toneport.c
+++ b/sound/usb/line6/toneport.c
@@ -365,16 +365,21 @@ static bool toneport_has_source_select(s
/*
Setup Toneport device.
*/
-static void toneport_setup(struct usb_line6_toneport *toneport)
+static int toneport_setup(struct usb_line6_toneport *toneport)
{
- u32 ticks;
+ u32 *ticks;
struct usb_line6 *line6 = &toneport->line6;
struct usb_device *usbdev = line6->usbdev;
+ ticks = kmalloc(sizeof(*ticks), GFP_KERNEL);
+ if (!ticks)
+ return -ENOMEM;
+
/* sync time on device with host: */
/* note: 32-bit timestamps overflow in year 2106 */
- ticks = (u32)ktime_get_real_seconds();
- line6_write_data(line6, 0x80c6, &ticks, 4);
+ *ticks = (u32)ktime_get_real_seconds();
+ line6_write_data(line6, 0x80c6, ticks, 4);
+ kfree(ticks);
/* enable device: */
toneport_send_cmd(usbdev, 0x0301, 0x0000);
@@ -451,7 +456,9 @@ static int toneport_init(struct usb_line
return err;
}
- toneport_setup(toneport);
+ err = toneport_setup(toneport);
+ if (err)
+ return err;
/* register audio system: */
return snd_card_register(line6->card);
@@ -463,7 +470,11 @@ static int toneport_init(struct usb_line
*/
static int toneport_reset_resume(struct usb_interface *interface)
{
- toneport_setup(usb_get_intfdata(interface));
+ int err;
+
+ err = toneport_setup(usb_get_intfdata(interface));
+ if (err)
+ return err;
return line6_resume(interface);
}
#endif
^ permalink raw reply [flat|nested] 6+ messages in thread
* sound: USB: line6: use dynamic buffers
@ 2019-04-28 16:42 ` Takashi Iwai
2019-04-28 16:42 ` [PATCH] " Takashi Iwai
2019-04-28 17:07 ` Greg Kroah-Hartman
0 siblings, 2 replies; 6+ messages in thread
From: Takashi Iwai @ 2019-04-28 16:42 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Jaroslav Kysela, alsa-devel, Arnd Bergmann, linux-kernel,
linux-usb
On Sun, 28 Apr 2019 18:04:11 +0200,
Greg Kroah-Hartman wrote:
>
> --- a/sound/usb/line6/toneport.c
> +++ b/sound/usb/line6/toneport.c
> @@ -365,16 +365,21 @@ static bool toneport_has_source_select(s
> /*
> Setup Toneport device.
> */
> -static void toneport_setup(struct usb_line6_toneport *toneport)
> +static int toneport_setup(struct usb_line6_toneport *toneport)
> {
> - u32 ticks;
> + u32 *ticks;
> struct usb_line6 *line6 = &toneport->line6;
> struct usb_device *usbdev = line6->usbdev;
>
> + ticks = kmalloc(sizeof(*ticks), GFP_KERNEL);
> + if (!ticks)
> + return -ENOMEM;
> +
> /* sync time on device with host: */
> /* note: 32-bit timestamps overflow in year 2106 */
> - ticks = (u32)ktime_get_real_seconds();
> - line6_write_data(line6, 0x80c6, &ticks, 4);
> + *ticks = (u32)ktime_get_real_seconds();
> + line6_write_data(line6, 0x80c6, ticks, 4);
> + kfree(ticks);
>
> /* enable device: */
> toneport_send_cmd(usbdev, 0x0301, 0x0000);
This function misses the "return 0" at the end, so I fixed it up
manually and applied now.
thanks,
Takashi
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] sound: USB: line6: use dynamic buffers
2019-04-28 16:42 ` Takashi Iwai
@ 2019-04-28 16:42 ` Takashi Iwai
2019-04-28 17:07 ` Greg Kroah-Hartman
1 sibling, 0 replies; 6+ messages in thread
From: Takashi Iwai @ 2019-04-28 16:42 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Jaroslav Kysela, alsa-devel, Arnd Bergmann, linux-kernel,
linux-usb
On Sun, 28 Apr 2019 18:04:11 +0200,
Greg Kroah-Hartman wrote:
>
> --- a/sound/usb/line6/toneport.c
> +++ b/sound/usb/line6/toneport.c
> @@ -365,16 +365,21 @@ static bool toneport_has_source_select(s
> /*
> Setup Toneport device.
> */
> -static void toneport_setup(struct usb_line6_toneport *toneport)
> +static int toneport_setup(struct usb_line6_toneport *toneport)
> {
> - u32 ticks;
> + u32 *ticks;
> struct usb_line6 *line6 = &toneport->line6;
> struct usb_device *usbdev = line6->usbdev;
>
> + ticks = kmalloc(sizeof(*ticks), GFP_KERNEL);
> + if (!ticks)
> + return -ENOMEM;
> +
> /* sync time on device with host: */
> /* note: 32-bit timestamps overflow in year 2106 */
> - ticks = (u32)ktime_get_real_seconds();
> - line6_write_data(line6, 0x80c6, &ticks, 4);
> + *ticks = (u32)ktime_get_real_seconds();
> + line6_write_data(line6, 0x80c6, ticks, 4);
> + kfree(ticks);
>
> /* enable device: */
> toneport_send_cmd(usbdev, 0x0301, 0x0000);
This function misses the "return 0" at the end, so I fixed it up
manually and applied now.
thanks,
Takashi
^ permalink raw reply [flat|nested] 6+ messages in thread
* sound: USB: line6: use dynamic buffers
@ 2019-04-28 17:07 ` Greg Kroah-Hartman
2019-04-28 17:07 ` [PATCH] " Greg Kroah-Hartman
0 siblings, 1 reply; 6+ messages in thread
From: Greg Kroah-Hartman @ 2019-04-28 17:07 UTC (permalink / raw)
To: Takashi Iwai
Cc: Jaroslav Kysela, alsa-devel, Arnd Bergmann, linux-kernel,
linux-usb
On Sun, Apr 28, 2019 at 06:42:10PM +0200, Takashi Iwai wrote:
> On Sun, 28 Apr 2019 18:04:11 +0200,
> Greg Kroah-Hartman wrote:
> >
> > --- a/sound/usb/line6/toneport.c
> > +++ b/sound/usb/line6/toneport.c
> > @@ -365,16 +365,21 @@ static bool toneport_has_source_select(s
> > /*
> > Setup Toneport device.
> > */
> > -static void toneport_setup(struct usb_line6_toneport *toneport)
> > +static int toneport_setup(struct usb_line6_toneport *toneport)
> > {
> > - u32 ticks;
> > + u32 *ticks;
> > struct usb_line6 *line6 = &toneport->line6;
> > struct usb_device *usbdev = line6->usbdev;
> >
> > + ticks = kmalloc(sizeof(*ticks), GFP_KERNEL);
> > + if (!ticks)
> > + return -ENOMEM;
> > +
> > /* sync time on device with host: */
> > /* note: 32-bit timestamps overflow in year 2106 */
> > - ticks = (u32)ktime_get_real_seconds();
> > - line6_write_data(line6, 0x80c6, &ticks, 4);
> > + *ticks = (u32)ktime_get_real_seconds();
> > + line6_write_data(line6, 0x80c6, ticks, 4);
> > + kfree(ticks);
> >
> > /* enable device: */
> > toneport_send_cmd(usbdev, 0x0301, 0x0000);
>
> This function misses the "return 0" at the end, so I fixed it up
> manually and applied now.
Ugh, sorry about that. Odd I didn't get a build error, my fault.
thanks for the quick response.
greg k-h
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] sound: USB: line6: use dynamic buffers
2019-04-28 17:07 ` Greg Kroah-Hartman
@ 2019-04-28 17:07 ` Greg Kroah-Hartman
0 siblings, 0 replies; 6+ messages in thread
From: Greg Kroah-Hartman @ 2019-04-28 17:07 UTC (permalink / raw)
To: Takashi Iwai
Cc: Jaroslav Kysela, alsa-devel, Arnd Bergmann, linux-kernel,
linux-usb
On Sun, Apr 28, 2019 at 06:42:10PM +0200, Takashi Iwai wrote:
> On Sun, 28 Apr 2019 18:04:11 +0200,
> Greg Kroah-Hartman wrote:
> >
> > --- a/sound/usb/line6/toneport.c
> > +++ b/sound/usb/line6/toneport.c
> > @@ -365,16 +365,21 @@ static bool toneport_has_source_select(s
> > /*
> > Setup Toneport device.
> > */
> > -static void toneport_setup(struct usb_line6_toneport *toneport)
> > +static int toneport_setup(struct usb_line6_toneport *toneport)
> > {
> > - u32 ticks;
> > + u32 *ticks;
> > struct usb_line6 *line6 = &toneport->line6;
> > struct usb_device *usbdev = line6->usbdev;
> >
> > + ticks = kmalloc(sizeof(*ticks), GFP_KERNEL);
> > + if (!ticks)
> > + return -ENOMEM;
> > +
> > /* sync time on device with host: */
> > /* note: 32-bit timestamps overflow in year 2106 */
> > - ticks = (u32)ktime_get_real_seconds();
> > - line6_write_data(line6, 0x80c6, &ticks, 4);
> > + *ticks = (u32)ktime_get_real_seconds();
> > + line6_write_data(line6, 0x80c6, ticks, 4);
> > + kfree(ticks);
> >
> > /* enable device: */
> > toneport_send_cmd(usbdev, 0x0301, 0x0000);
>
> This function misses the "return 0" at the end, so I fixed it up
> manually and applied now.
Ugh, sorry about that. Odd I didn't get a build error, my fault.
thanks for the quick response.
greg k-h
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-04-28 17:07 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-04-28 16:04 sound: USB: line6: use dynamic buffers Greg Kroah-Hartman
2019-04-28 16:04 ` [PATCH] " Greg Kroah-Hartman
2019-04-28 16:42 ` Takashi Iwai
2019-04-28 16:42 ` [PATCH] " Takashi Iwai
2019-04-28 17:07 ` Greg Kroah-Hartman
2019-04-28 17:07 ` [PATCH] " Greg Kroah-Hartman
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