* [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL
@ 2011-07-28 23:51 Darren Hart
2011-07-29 1:38 ` Bruce Ashfield
2011-07-30 18:34 ` Khem Raj
0 siblings, 2 replies; 5+ messages in thread
From: Darren Hart @ 2011-07-28 23:51 UTC (permalink / raw)
To: Yocto Project
Bruce,
Please apply to yocto/base. Fixes a boot issue for a
tunnel creek development board.
--
commit 2b934c6236983392d01bef22e43af3051cac16f5
If dmi_get_system_info() returns NULL, pch_phub_probe() will dereferencea
a zero pointer.
This oops was observed on an Atom based board which has no BIOS, but a
bootloder which doesn't privde DMI data.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Cc: Greg KH <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/misc/pch_phub.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 5fe79df..01eb67b 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -686,6 +686,8 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
}
if (id->driver_data == 1) { /* EG20T PCH */
+ const char *board_name;
+
retval = sysfs_create_file(&pdev->dev.kobj,
&dev_attr_pch_mac.attr);
if (retval)
@@ -701,7 +703,8 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
CLKCFG_CANCLK_MASK);
/* quirk for CM-iTC board */
- if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC"))
+ board_name = dmi_get_system_info(DMI_BOARD_NAME);
+ if (board_name && strstr(board_name, "CM-iTC"))
pch_phub_read_modify_write_reg(chip,
(unsigned int)CLKCFG_REG_OFFSET,
CLKCFG_UART_48MHZ | CLKCFG_BAUDDIV |
--
1.7.1
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL
2011-07-28 23:51 [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL Darren Hart
@ 2011-07-29 1:38 ` Bruce Ashfield
2011-07-30 18:34 ` Khem Raj
1 sibling, 0 replies; 5+ messages in thread
From: Bruce Ashfield @ 2011-07-29 1:38 UTC (permalink / raw)
To: Darren Hart; +Cc: Yocto Project
On 11-07-28 7:51 PM, Darren Hart wrote:
> Bruce,
>
> Please apply to yocto/base. Fixes a boot issue for a
> tunnel creek development board.
I fetched and updated master in linux-yocto-3.0 and cherry picked
this into yocto/base, and merged it out.
e6625fa..55f9c40 master -> master
935b896..c33fc74 yocto/base -> yocto/base
67283c12..30a2cec yocto/standard/arm-versatile-926ejs ->
yocto/standard/arm-versatile-926ejs
dee149a..318b059 yocto/standard/base -> yocto/standard/base
850784c..f79313d yocto/standard/beagleboard ->
yocto/standard/beagleboard
b584e72..c30a568 yocto/standard/common-pc-64/base ->
yocto/standard/common-pc-64/base
8064012..61da1e3 yocto/standard/common-pc-64/jasperforest ->
yocto/standard/common-pc-64/jasperforest
69faf26..ac5c59d yocto/standard/common-pc-64/romley ->
yocto/standard/common-pc-64/romley
1da9aad..c49c587 yocto/standard/common-pc-64/sugarbay ->
yocto/standard/common-pc-64/sugarbay
287479a..9e321ee yocto/standard/common-pc/atom-pc ->
yocto/standard/common-pc/atom-pc
f56a137..efaab1f yocto/standard/common-pc/base ->
yocto/standard/common-pc/base
34a9e0e..9a259cf yocto/standard/crownbay -> yocto/standard/crownbay
311152b..8c09403 yocto/standard/emenlow -> yocto/standard/emenlow
813ec5a..e556c2a yocto/standard/fishriver -> yocto/standard/fishriver
2d19d3f..5e08aa8 yocto/standard/fri2 -> yocto/standard/fri2
1562ec0..a8eef04 yocto/standard/fsl-mpc8315e-rdb ->
yocto/standard/fsl-mpc8315e-rdb
ac0f36e..f9b9688 yocto/standard/mti-malta32-be ->
yocto/standard/mti-malta32-be
7d24c08..bb024ac yocto/standard/mti-malta32-le ->
yocto/standard/mti-malta32-le
40381c3..6c76d97 yocto/standard/preempt-rt/base ->
yocto/standard/preempt-rt/base
40381c3..5ae5cb6 yocto/standard/preempt-rt/common-pc ->
yocto/standard/preempt-rt/common-pc
38525f1..a46a4c3 yocto/standard/qemu-ppc32 -> yocto/standard/qemu-ppc32
5eaea5c..df9213c yocto/standard/routerstationpro ->
yocto/standard/routerstationpro
You'll need to use kernel-dev or update your SRCREVs manually to pick
it up. I've got a pending update that I'll send out later. But we'd have
to wait for it to merge into poky master anyway.
Cheers,
Bruce
>
> --
>
> commit 2b934c6236983392d01bef22e43af3051cac16f5
>
> If dmi_get_system_info() returns NULL, pch_phub_probe() will dereferencea
> a zero pointer.
>
> This oops was observed on an Atom based board which has no BIOS, but a
> bootloder which doesn't privde DMI data.
>
> Signed-off-by: Alexander Stein<alexander.stein@systec-electronic.com>
> Cc: Tomoya MORINAGA<tomoya-linux@dsn.okisemi.com>
> Cc: Greg KH<gregkh@suse.de>
> Signed-off-by: Andrew Morton<akpm@linux-foundation.org>
> Signed-off-by: Linus Torvalds<torvalds@linux-foundation.org>
> ---
> drivers/misc/pch_phub.c | 5 ++++-
> 1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
> index 5fe79df..01eb67b 100644
> --- a/drivers/misc/pch_phub.c
> +++ b/drivers/misc/pch_phub.c
> @@ -686,6 +686,8 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
> }
>
> if (id->driver_data == 1) { /* EG20T PCH */
> + const char *board_name;
> +
> retval = sysfs_create_file(&pdev->dev.kobj,
> &dev_attr_pch_mac.attr);
> if (retval)
> @@ -701,7 +703,8 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
> CLKCFG_CANCLK_MASK);
>
> /* quirk for CM-iTC board */
> - if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC"))
> + board_name = dmi_get_system_info(DMI_BOARD_NAME);
> + if (board_name&& strstr(board_name, "CM-iTC"))
> pch_phub_read_modify_write_reg(chip,
> (unsigned int)CLKCFG_REG_OFFSET,
> CLKCFG_UART_48MHZ | CLKCFG_BAUDDIV |
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL
2011-07-28 23:51 [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL Darren Hart
2011-07-29 1:38 ` Bruce Ashfield
@ 2011-07-30 18:34 ` Khem Raj
2011-07-31 1:13 ` Bruce Ashfield
2011-08-03 4:30 ` Darren Hart
1 sibling, 2 replies; 5+ messages in thread
From: Khem Raj @ 2011-07-30 18:34 UTC (permalink / raw)
To: yocto
On Thursday, July 28, 2011 04:51:41 PM Darren Hart wrote:
> Bruce,
>
> Please apply to yocto/base. Fixes a boot issue for a
> tunnel creek development board.
>
> --
>
> commit 2b934c6236983392d01bef22e43af3051cac16f5
>
> If dmi_get_system_info() returns NULL, pch_phub_probe() will dereferencea
> a zero pointer.
>
> This oops was observed on an Atom based board which has no BIOS, but a
> bootloder which doesn't privde DMI data.
>
> Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
> Cc: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
> Cc: Greg KH <gregkh@suse.de>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
> ---
> drivers/misc/pch_phub.c | 5 ++++-
> 1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
> index 5fe79df..01eb67b 100644
> --- a/drivers/misc/pch_phub.c
> +++ b/drivers/misc/pch_phub.c
> @@ -686,6 +686,8 @@ static int __devinit pch_phub_probe(struct pci_dev
> *pdev, }
>
> if (id->driver_data == 1) { /* EG20T PCH */
> + const char *board_name;
> +
> retval = sysfs_create_file(&pdev->dev.kobj,
> &dev_attr_pch_mac.attr);
> if (retval)
> @@ -701,7 +703,8 @@ static int __devinit pch_phub_probe(struct pci_dev
> *pdev, CLKCFG_CANCLK_MASK);
>
> /* quirk for CM-iTC board */
> - if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC"))
> + board_name = dmi_get_system_info(DMI_BOARD_NAME);
> + if (board_name && strstr(board_name, "CM-iTC"))
May be it could be just if ( dmi_get_system_info(DMI_BOARD_NAME) &&
strstr(board_name, "CM-iTC"))
although I think compiler will already do it internally
> pch_phub_read_modify_write_reg(chip,
> (unsigned int)CLKCFG_REG_OFFSET,
> CLKCFG_UART_48MHZ | CLKCFG_BAUDDIV |
--
Khem Raj
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL
2011-07-30 18:34 ` Khem Raj
@ 2011-07-31 1:13 ` Bruce Ashfield
2011-08-03 4:30 ` Darren Hart
1 sibling, 0 replies; 5+ messages in thread
From: Bruce Ashfield @ 2011-07-31 1:13 UTC (permalink / raw)
To: Khem Raj; +Cc: yocto
On 11-07-30 2:34 PM, Khem Raj wrote:
> On Thursday, July 28, 2011 04:51:41 PM Darren Hart wrote:
>> Bruce,
>>
>> Please apply to yocto/base. Fixes a boot issue for a
>> tunnel creek development board.
>>
>> --
>>
>> commit 2b934c6236983392d01bef22e43af3051cac16f5
>>
>> If dmi_get_system_info() returns NULL, pch_phub_probe() will dereferencea
>> a zero pointer.
>>
>> This oops was observed on an Atom based board which has no BIOS, but a
>> bootloder which doesn't privde DMI data.
>>
>> Signed-off-by: Alexander Stein<alexander.stein@systec-electronic.com>
>> Cc: Tomoya MORINAGA<tomoya-linux@dsn.okisemi.com>
>> Cc: Greg KH<gregkh@suse.de>
>> Signed-off-by: Andrew Morton<akpm@linux-foundation.org>
>> Signed-off-by: Linus Torvalds<torvalds@linux-foundation.org>
>> ---
>> drivers/misc/pch_phub.c | 5 ++++-
>> 1 files changed, 4 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
>> index 5fe79df..01eb67b 100644
>> --- a/drivers/misc/pch_phub.c
>> +++ b/drivers/misc/pch_phub.c
>> @@ -686,6 +686,8 @@ static int __devinit pch_phub_probe(struct pci_dev
>> *pdev, }
>>
>> if (id->driver_data == 1) { /* EG20T PCH */
>> + const char *board_name;
>> +
>> retval = sysfs_create_file(&pdev->dev.kobj,
>> &dev_attr_pch_mac.attr);
>> if (retval)
>> @@ -701,7 +703,8 @@ static int __devinit pch_phub_probe(struct pci_dev
>> *pdev, CLKCFG_CANCLK_MASK);
>>
>> /* quirk for CM-iTC board */
>> - if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC"))
>> + board_name = dmi_get_system_info(DMI_BOARD_NAME);
>> + if (board_name&& strstr(board_name, "CM-iTC"))
>
> May be it could be just if ( dmi_get_system_info(DMI_BOARD_NAME)&&
> strstr(board_name, "CM-iTC"))
>
> although I think compiler will already do it internally
Could very well be. I grabbed this one directly from linus' tree,
so I've got it as-is for now, but I've tagged it to be considered
later if we do decide that we want to send a tweak of this upstream
Thanks!
Bruce
>
>> pch_phub_read_modify_write_reg(chip,
>> (unsigned int)CLKCFG_REG_OFFSET,
>> CLKCFG_UART_48MHZ | CLKCFG_BAUDDIV |
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL
2011-07-30 18:34 ` Khem Raj
2011-07-31 1:13 ` Bruce Ashfield
@ 2011-08-03 4:30 ` Darren Hart
1 sibling, 0 replies; 5+ messages in thread
From: Darren Hart @ 2011-08-03 4:30 UTC (permalink / raw)
To: Khem Raj; +Cc: yocto
On 07/30/2011 11:34 AM, Khem Raj wrote:
> On Thursday, July 28, 2011 04:51:41 PM Darren Hart wrote:
>> Bruce,
>>
>> Please apply to yocto/base. Fixes a boot issue for a
>> tunnel creek development board.
>>
>> --
>>
>> commit 2b934c6236983392d01bef22e43af3051cac16f5
>>
>> If dmi_get_system_info() returns NULL, pch_phub_probe() will dereferencea
>> a zero pointer.
>>
>> This oops was observed on an Atom based board which has no BIOS, but a
>> bootloder which doesn't privde DMI data.
>>
>> Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
>> Cc: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
>> Cc: Greg KH <gregkh@suse.de>
>> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
>> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
>> ---
>> drivers/misc/pch_phub.c | 5 ++++-
>> 1 files changed, 4 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
>> index 5fe79df..01eb67b 100644
>> --- a/drivers/misc/pch_phub.c
>> +++ b/drivers/misc/pch_phub.c
>> @@ -686,6 +686,8 @@ static int __devinit pch_phub_probe(struct pci_dev
>> *pdev, }
>>
>> if (id->driver_data == 1) { /* EG20T PCH */
>> + const char *board_name;
>> +
>> retval = sysfs_create_file(&pdev->dev.kobj,
>> &dev_attr_pch_mac.attr);
>> if (retval)
>> @@ -701,7 +703,8 @@ static int __devinit pch_phub_probe(struct pci_dev
>> *pdev, CLKCFG_CANCLK_MASK);
>>
>> /* quirk for CM-iTC board */
>> - if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC"))
>> + board_name = dmi_get_system_info(DMI_BOARD_NAME);
>> + if (board_name && strstr(board_name, "CM-iTC"))
>
> May be it could be just if ( dmi_get_system_info(DMI_BOARD_NAME) &&
> strstr(board_name, "CM-iTC"))
Where does board_name get initialized in your version?
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2011-08-03 4:30 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-07-28 23:51 [PATCH][linux-yocto-3.0] drivers/misc/pch_phub.c: don't oops if dmi_get_system_info returns NULL Darren Hart
2011-07-29 1:38 ` Bruce Ashfield
2011-07-30 18:34 ` Khem Raj
2011-07-31 1:13 ` Bruce Ashfield
2011-08-03 4:30 ` Darren Hart
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