* [PATCH 0/2] serial: amba-pl01x: Clean up patches
@ 2014-06-23 5:59 Tushar Behera
2014-06-23 5:59 ` [PATCH 1/2] serial: amba-pl011: Remove redundant label Tushar Behera
2014-06-23 5:59 ` [PATCH 2/2] serial: amba-pl010: Use devres APIs Tushar Behera
0 siblings, 2 replies; 6+ messages in thread
From: Tushar Behera @ 2014-06-23 5:59 UTC (permalink / raw)
To: linux-kernel, linux-serial, jslaby, gregkh, linux; +Cc: trblinux
The patches are based next-20140620 and they have only been build
tested.
Tushar Behera (2):
serial: amba-pl011: Simplify goto statements
serial: amba-pl010: Use devres APIs
drivers/tty/serial/amba-pl010.c | 46 ++++++++++++++-------------------------
drivers/tty/serial/amba-pl011.c | 30 +++++++++----------------
2 files changed, 26 insertions(+), 50 deletions(-)
--
1.7.9.5
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 1/2] serial: amba-pl011: Remove redundant label
2014-06-23 5:59 [PATCH 0/2] serial: amba-pl01x: Clean up patches Tushar Behera
@ 2014-06-23 5:59 ` Tushar Behera
2014-06-23 12:37 ` Daniel Thompson
2014-06-23 5:59 ` [PATCH 2/2] serial: amba-pl010: Use devres APIs Tushar Behera
1 sibling, 1 reply; 6+ messages in thread
From: Tushar Behera @ 2014-06-23 5:59 UTC (permalink / raw)
To: linux-kernel, linux-serial, jslaby, gregkh, linux; +Cc: trblinux
The label 'out' is only used to return the error code. We can return the
error code directly and remove 'out' label.
Signed-off-by: Tushar Behera <tushar.b@samsung.com>
---
drivers/tty/serial/amba-pl011.c | 30 ++++++++++--------------------
1 file changed, 10 insertions(+), 20 deletions(-)
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 0e26dcb..8572f2a 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1484,7 +1484,7 @@ static int pl011_hwinit(struct uart_port *port)
*/
retval = clk_prepare_enable(uap->clk);
if (retval)
- goto out;
+ return retval;
uap->port.uartclk = clk_get_rate(uap->clk);
@@ -1507,8 +1507,6 @@ static int pl011_hwinit(struct uart_port *port)
plat->init();
}
return 0;
- out:
- return retval;
}
static void pl011_write_lcr_h(struct uart_amba_port *uap, unsigned int lcr_h)
@@ -2131,32 +2129,24 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
if (amba_ports[i] == NULL)
break;
- if (i == ARRAY_SIZE(amba_ports)) {
- ret = -EBUSY;
- goto out;
- }
+ if (i == ARRAY_SIZE(amba_ports))
+ return -EBUSY;
uap = devm_kzalloc(&dev->dev, sizeof(struct uart_amba_port),
GFP_KERNEL);
- if (uap == NULL) {
- ret = -ENOMEM;
- goto out;
- }
+ if (uap == NULL)
+ return -ENOMEM;
i = pl011_probe_dt_alias(i, &dev->dev);
base = devm_ioremap(&dev->dev, dev->res.start,
resource_size(&dev->res));
- if (!base) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!base)
+ return -ENOMEM;
uap->clk = devm_clk_get(&dev->dev, NULL);
- if (IS_ERR(uap->clk)) {
- ret = PTR_ERR(uap->clk);
- goto out;
- }
+ if (IS_ERR(uap->clk))
+ return PTR_ERR(uap->clk);
uap->vendor = vendor;
uap->lcrh_rx = vendor->lcrh_rx;
@@ -2198,7 +2188,7 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
uart_unregister_driver(&amba_reg);
pl011_dma_remove(uap);
}
- out:
+
return ret;
}
--
1.7.9.5
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/2] serial: amba-pl010: Use devres APIs
2014-06-23 5:59 [PATCH 0/2] serial: amba-pl01x: Clean up patches Tushar Behera
2014-06-23 5:59 ` [PATCH 1/2] serial: amba-pl011: Remove redundant label Tushar Behera
@ 2014-06-23 5:59 ` Tushar Behera
2014-06-23 12:46 ` Daniel Thompson
1 sibling, 1 reply; 6+ messages in thread
From: Tushar Behera @ 2014-06-23 5:59 UTC (permalink / raw)
To: linux-kernel, linux-serial, jslaby, gregkh, linux; +Cc: trblinux
Migrating to use devres managed APIs devm_kzalloc, devm_ioremap and
devm_clk_get.
Signed-off-by: Tushar Behera <tushar.b@samsung.com>
---
drivers/tty/serial/amba-pl010.c | 46 ++++++++++++++-------------------------
1 file changed, 16 insertions(+), 30 deletions(-)
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 971af1e..af8deba 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -46,6 +46,7 @@
#include <linux/amba/serial.h>
#include <linux/clk.h>
#include <linux/slab.h>
+#include <linux/io.h>
#include <asm/io.h>
@@ -688,28 +689,22 @@ static int pl010_probe(struct amba_device *dev, const struct amba_id *id)
if (amba_ports[i] == NULL)
break;
- if (i == ARRAY_SIZE(amba_ports)) {
- ret = -EBUSY;
- goto out;
- }
+ if (i == ARRAY_SIZE(amba_ports))
+ return -EBUSY;
- uap = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
- if (!uap) {
- ret = -ENOMEM;
- goto out;
- }
+ uap = devm_kzalloc(&dev->dev, sizeof(struct uart_amba_port),
+ GFP_KERNEL);
+ if (!uap)
+ return -ENOMEM;
- base = ioremap(dev->res.start, resource_size(&dev->res));
- if (!base) {
- ret = -ENOMEM;
- goto free;
- }
+ base = devm_ioremap(&dev->dev, dev->res.start,
+ resource_size(&dev->res));
+ if (!base)
+ return -ENOMEM;
- uap->clk = clk_get(&dev->dev, NULL);
- if (IS_ERR(uap->clk)) {
- ret = PTR_ERR(uap->clk);
- goto unmap;
- }
+ uap->clk = devm_clk_get(&dev->dev, NULL);
+ if (IS_ERR(uap->clk))
+ return PTR_ERR(uap->clk);
uap->port.dev = &dev->dev;
uap->port.mapbase = dev->res.start;
@@ -727,15 +722,9 @@ static int pl010_probe(struct amba_device *dev, const struct amba_id *id)
amba_set_drvdata(dev, uap);
ret = uart_add_one_port(&amba_reg, &uap->port);
- if (ret) {
+ if (ret)
amba_ports[i] = NULL;
- clk_put(uap->clk);
- unmap:
- iounmap(base);
- free:
- kfree(uap);
- }
- out:
+
return ret;
}
@@ -750,9 +739,6 @@ static int pl010_remove(struct amba_device *dev)
if (amba_ports[i] == uap)
amba_ports[i] = NULL;
- iounmap(uap->port.membase);
- clk_put(uap->clk);
- kfree(uap);
return 0;
}
--
1.7.9.5
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] serial: amba-pl011: Remove redundant label
2014-06-23 5:59 ` [PATCH 1/2] serial: amba-pl011: Remove redundant label Tushar Behera
@ 2014-06-23 12:37 ` Daniel Thompson
0 siblings, 0 replies; 6+ messages in thread
From: Daniel Thompson @ 2014-06-23 12:37 UTC (permalink / raw)
To: Tushar Behera, linux-kernel, linux-serial, jslaby, gregkh, linux; +Cc: trblinux
On 23/06/14 06:59, Tushar Behera wrote:
> The label 'out' is only used to return the error code. We can return the
> error code directly and remove 'out' label.
>
> Signed-off-by: Tushar Behera <tushar.b@samsung.com>
> ---
> drivers/tty/serial/amba-pl011.c | 30 ++++++++++--------------------
> 1 file changed, 10 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
> index 0e26dcb..8572f2a 100644
> --- a/drivers/tty/serial/amba-pl011.c
> +++ b/drivers/tty/serial/amba-pl011.c
> @@ -1484,7 +1484,7 @@ static int pl011_hwinit(struct uart_port *port)
> */
> retval = clk_prepare_enable(uap->clk);
> if (retval)
> - goto out;
> + return retval;
>
> uap->port.uartclk = clk_get_rate(uap->clk);
>
> @@ -1507,8 +1507,6 @@ static int pl011_hwinit(struct uart_port *port)
> plat->init();
> }
> return 0;
> - out:
> - return retval;
> }
>
> static void pl011_write_lcr_h(struct uart_amba_port *uap, unsigned int lcr_h)
> @@ -2131,32 +2129,24 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
> if (amba_ports[i] == NULL)
> break;
>
> - if (i == ARRAY_SIZE(amba_ports)) {
> - ret = -EBUSY;
> - goto out;
> - }
> + if (i == ARRAY_SIZE(amba_ports))
> + return -EBUSY;
>
> uap = devm_kzalloc(&dev->dev, sizeof(struct uart_amba_port),
> GFP_KERNEL);
> - if (uap == NULL) {
> - ret = -ENOMEM;
> - goto out;
> - }
> + if (uap == NULL)
> + return -ENOMEM;
>
> i = pl011_probe_dt_alias(i, &dev->dev);
>
> base = devm_ioremap(&dev->dev, dev->res.start,
> resource_size(&dev->res));
> - if (!base) {
> - ret = -ENOMEM;
> - goto out;
> - }
> + if (!base)
> + return -ENOMEM;
>
> uap->clk = devm_clk_get(&dev->dev, NULL);
> - if (IS_ERR(uap->clk)) {
> - ret = PTR_ERR(uap->clk);
> - goto out;
> - }
> + if (IS_ERR(uap->clk))
> + return PTR_ERR(uap->clk);
>
> uap->vendor = vendor;
> uap->lcrh_rx = vendor->lcrh_rx;
> @@ -2198,7 +2188,7 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
> uart_unregister_driver(&amba_reg);
> pl011_dma_remove(uap);
> }
> - out:
> +
> return ret;
> }
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] serial: amba-pl010: Use devres APIs
2014-06-23 5:59 ` [PATCH 2/2] serial: amba-pl010: Use devres APIs Tushar Behera
@ 2014-06-23 12:46 ` Daniel Thompson
2014-06-26 9:37 ` Tushar Behera
0 siblings, 1 reply; 6+ messages in thread
From: Daniel Thompson @ 2014-06-23 12:46 UTC (permalink / raw)
To: Tushar Behera, linux-kernel, linux-serial, jslaby, gregkh, linux; +Cc: trblinux
On 23/06/14 06:59, Tushar Behera wrote:
> Migrating to use devres managed APIs devm_kzalloc, devm_ioremap and
> devm_clk_get.
>
> Signed-off-by: Tushar Behera <tushar.b@samsung.com>
> ---
> drivers/tty/serial/amba-pl010.c | 46 ++++++++++++++-------------------------
> 1 file changed, 16 insertions(+), 30 deletions(-)
>
> diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
> index 971af1e..af8deba 100644
> --- a/drivers/tty/serial/amba-pl010.c
> +++ b/drivers/tty/serial/amba-pl010.c
> @@ -46,6 +46,7 @@
> #include <linux/amba/serial.h>
> #include <linux/clk.h>
> #include <linux/slab.h>
> +#include <linux/io.h>
>
> #include <asm/io.h>
Adding <linux/io.h> makes including <asm/io.h> redundant.
> @@ -688,28 +689,22 @@ static int pl010_probe(struct amba_device *dev, const struct amba_id *id)
> if (amba_ports[i] == NULL)
> break;
>
> - if (i == ARRAY_SIZE(amba_ports)) {
> - ret = -EBUSY;
> - goto out;
> - }
> + if (i == ARRAY_SIZE(amba_ports))
> + return -EBUSY;
>
> - uap = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
> - if (!uap) {
> - ret = -ENOMEM;
> - goto out;
> - }
> + uap = devm_kzalloc(&dev->dev, sizeof(struct uart_amba_port),
> + GFP_KERNEL);
> + if (!uap)
> + return -ENOMEM;
>
> - base = ioremap(dev->res.start, resource_size(&dev->res));
> - if (!base) {
> - ret = -ENOMEM;
> - goto free;
> - }
> + base = devm_ioremap(&dev->dev, dev->res.start,
> + resource_size(&dev->res));
> + if (!base)
> + return -ENOMEM;
>
> - uap->clk = clk_get(&dev->dev, NULL);
> - if (IS_ERR(uap->clk)) {
> - ret = PTR_ERR(uap->clk);
> - goto unmap;
> - }
> + uap->clk = devm_clk_get(&dev->dev, NULL);
> + if (IS_ERR(uap->clk))
> + return PTR_ERR(uap->clk);
>
> uap->port.dev = &dev->dev;
> uap->port.mapbase = dev->res.start;
> @@ -727,15 +722,9 @@ static int pl010_probe(struct amba_device *dev, const struct amba_id *id)
>
> amba_set_drvdata(dev, uap);
> ret = uart_add_one_port(&amba_reg, &uap->port);
> - if (ret) {
> + if (ret)
> amba_ports[i] = NULL;
> - clk_put(uap->clk);
> - unmap:
> - iounmap(base);
> - free:
> - kfree(uap);
> - }
> - out:
> +
> return ret;
> }
>
> @@ -750,9 +739,6 @@ static int pl010_remove(struct amba_device *dev)
> if (amba_ports[i] == uap)
> amba_ports[i] = NULL;
>
> - iounmap(uap->port.membase);
> - clk_put(uap->clk);
> - kfree(uap);
> return 0;
> }
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] serial: amba-pl010: Use devres APIs
2014-06-23 12:46 ` Daniel Thompson
@ 2014-06-26 9:37 ` Tushar Behera
0 siblings, 0 replies; 6+ messages in thread
From: Tushar Behera @ 2014-06-26 9:37 UTC (permalink / raw)
To: Daniel Thompson, Tushar Behera, linux-kernel, linux-serial,
jslaby, gregkh, linux
On 06/23/2014 06:16 PM, Daniel Thompson wrote:
> On 23/06/14 06:59, Tushar Behera wrote:
>> Migrating to use devres managed APIs devm_kzalloc, devm_ioremap and
>> devm_clk_get.
>>
>> Signed-off-by: Tushar Behera <tushar.b@samsung.com>
>> ---
>> drivers/tty/serial/amba-pl010.c | 46 ++++++++++++++-------------------------
>> 1 file changed, 16 insertions(+), 30 deletions(-)
>>
>> diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
>> index 971af1e..af8deba 100644
>> --- a/drivers/tty/serial/amba-pl010.c
>> +++ b/drivers/tty/serial/amba-pl010.c
>> @@ -46,6 +46,7 @@
>> #include <linux/amba/serial.h>
>> #include <linux/clk.h>
>> #include <linux/slab.h>
>> +#include <linux/io.h>
>>
>> #include <asm/io.h>
>
> Adding <linux/io.h> makes including <asm/io.h> redundant.
>
Okay, I will remove the <asm/io.h> in next iteration.
>
>> @@ -688,28 +689,22 @@ static int pl010_probe(struct amba_device *dev, const struct amba_id *id)
>> if (amba_ports[i] == NULL)
>> break;
>>
>> - if (i == ARRAY_SIZE(amba_ports)) {
>> - ret = -EBUSY;
>> - goto out;
>> - }
>> + if (i == ARRAY_SIZE(amba_ports))
>> + return -EBUSY;
>>
>> - uap = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
>> - if (!uap) {
>> - ret = -ENOMEM;
>> - goto out;
>> - }
>> + uap = devm_kzalloc(&dev->dev, sizeof(struct uart_amba_port),
>> + GFP_KERNEL);
>> + if (!uap)
>> + return -ENOMEM;
>>
>> - base = ioremap(dev->res.start, resource_size(&dev->res));
>> - if (!base) {
>> - ret = -ENOMEM;
>> - goto free;
>> - }
>> + base = devm_ioremap(&dev->dev, dev->res.start,
>> + resource_size(&dev->res));
>> + if (!base)
>> + return -ENOMEM;
>>
>> - uap->clk = clk_get(&dev->dev, NULL);
>> - if (IS_ERR(uap->clk)) {
>> - ret = PTR_ERR(uap->clk);
>> - goto unmap;
>> - }
>> + uap->clk = devm_clk_get(&dev->dev, NULL);
>> + if (IS_ERR(uap->clk))
>> + return PTR_ERR(uap->clk);
>>
>> uap->port.dev = &dev->dev;
>> uap->port.mapbase = dev->res.start;
>> @@ -727,15 +722,9 @@ static int pl010_probe(struct amba_device *dev, const struct amba_id *id)
>>
>> amba_set_drvdata(dev, uap);
>> ret = uart_add_one_port(&amba_reg, &uap->port);
>> - if (ret) {
>> + if (ret)
>> amba_ports[i] = NULL;
>> - clk_put(uap->clk);
>> - unmap:
>> - iounmap(base);
>> - free:
>> - kfree(uap);
>> - }
>> - out:
>> +
>> return ret;
>> }
>>
>> @@ -750,9 +739,6 @@ static int pl010_remove(struct amba_device *dev)
>> if (amba_ports[i] == uap)
>> amba_ports[i] = NULL;
>>
>> - iounmap(uap->port.membase);
>> - clk_put(uap->clk);
>> - kfree(uap);
>> return 0;
>> }
>
> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
>
Thanks for reviewing.
--
Tushar Behera
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-06-26 9:37 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-06-23 5:59 [PATCH 0/2] serial: amba-pl01x: Clean up patches Tushar Behera
2014-06-23 5:59 ` [PATCH 1/2] serial: amba-pl011: Remove redundant label Tushar Behera
2014-06-23 12:37 ` Daniel Thompson
2014-06-23 5:59 ` [PATCH 2/2] serial: amba-pl010: Use devres APIs Tushar Behera
2014-06-23 12:46 ` Daniel Thompson
2014-06-26 9:37 ` Tushar Behera
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