* [PATCH] 2.6.6 memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
@ 2004-06-06 16:06 Yury Umanets
2004-06-06 17:20 ` Randy.Dunlap
0 siblings, 1 reply; 4+ messages in thread
From: Yury Umanets @ 2004-06-06 16:06 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel
Adds memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c | 3 +++
1 files changed, 3 insertions(+)
diff -rupN ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c
./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c
--- ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c Mon May 10
05:33:20 2004
+++ ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c Wed Jun
2 14:57:41 2004
@@ -246,6 +246,9 @@ void cs46xx_dsp_proc_register_scb_desc (
if ((entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
ins->proc_dsp_dir)) != NULL) {
scb_info = kmalloc(sizeof(proc_scb_info_t), GFP_KERNEL);
+ if (!scb_info)
+ return;
+
scb_info->chip = chip;
scb_info->scb_desc = scb;
--
umka
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] 2.6.6 memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
2004-06-06 16:06 [PATCH] 2.6.6 memory allocation checks in cs46xx_dsp_proc_register_scb_desc() Yury Umanets
@ 2004-06-06 17:20 ` Randy.Dunlap
2004-06-06 17:40 ` Yury Umanets
0 siblings, 1 reply; 4+ messages in thread
From: Randy.Dunlap @ 2004-06-06 17:20 UTC (permalink / raw)
To: Yury Umanets; +Cc: akpm, linux-kernel
On Sun, 06 Jun 2004 19:06:42 +0300 Yury Umanets wrote:
| Adds memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
|
| ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c | 3 +++
| 1 files changed, 3 insertions(+)
|
| diff -rupN ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c
| ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c
| --- ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c Mon May 10
| 05:33:20 2004
| +++ ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c Wed Jun
| 2 14:57:41 2004
| @@ -246,6 +246,9 @@ void cs46xx_dsp_proc_register_scb_desc (
| if ((entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
| ins->proc_dsp_dir)) != NULL) {
| scb_info = kmalloc(sizeof(proc_scb_info_t), GFP_KERNEL);
| + if (!scb_info)
| + return;
| +
| scb_info->chip = chip;
| scb_info->scb_desc = scb;
|
This seems to be missing some other cleanup on the failure path,
like it does below in the same function:
snd_info_free_entry(entry);
--
~Randy
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] 2.6.6 memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
2004-06-06 17:20 ` Randy.Dunlap
@ 2004-06-06 17:40 ` Yury Umanets
2004-06-06 17:54 ` Yury Umanets
0 siblings, 1 reply; 4+ messages in thread
From: Yury Umanets @ 2004-06-06 17:40 UTC (permalink / raw)
To: Randy.Dunlap; +Cc: akpm, linux-kernel
On Sun, 2004-06-06 at 20:20, Randy.Dunlap wrote:
> On Sun, 06 Jun 2004 19:06:42 +0300 Yury Umanets wrote:
>
> | Adds memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
> |
> | ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c | 3 +++
> | 1 files changed, 3 insertions(+)
> |
> | diff -rupN ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c
> | ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c
> | --- ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c Mon May 10
> | 05:33:20 2004
> | +++ ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c Wed Jun
> | 2 14:57:41 2004
> | @@ -246,6 +246,9 @@ void cs46xx_dsp_proc_register_scb_desc (
> | if ((entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
> | ins->proc_dsp_dir)) != NULL) {
> | scb_info = kmalloc(sizeof(proc_scb_info_t), GFP_KERNEL);
> | + if (!scb_info)
> | + return;
> | +
> | scb_info->chip = chip;
> | scb_info->scb_desc = scb;
> |
>
> This seems to be missing some other cleanup on the failure path,
> like it does below in the same function:
>
> snd_info_free_entry(entry);
oops, you're right. Thanks Randy. Will fix that.
>
> --
> ~Randy
> -
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--
umka
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] 2.6.6 memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
2004-06-06 17:40 ` Yury Umanets
@ 2004-06-06 17:54 ` Yury Umanets
0 siblings, 0 replies; 4+ messages in thread
From: Yury Umanets @ 2004-06-06 17:54 UTC (permalink / raw)
To: Randy.Dunlap; +Cc: akpm, linux-kernel
On Sun, 2004-06-06 at 20:40, Yury Umanets wrote:
> On Sun, 2004-06-06 at 20:20, Randy.Dunlap wrote:
> > On Sun, 06 Jun 2004 19:06:42 +0300 Yury Umanets wrote:
> >
> > | Adds memory allocation checks in cs46xx_dsp_proc_register_scb_desc()
> > |
> > | ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c | 3 +++
> > | 1 files changed, 3 insertions(+)
> > |
> > | diff -rupN ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c
> > | ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c
> > | --- ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c Mon May 10
> > | 05:33:20 2004
> > | +++ ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c Wed Jun
> > | 2 14:57:41 2004
> > | @@ -246,6 +246,9 @@ void cs46xx_dsp_proc_register_scb_desc (
> > | if ((entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
> > | ins->proc_dsp_dir)) != NULL) {
> > | scb_info = kmalloc(sizeof(proc_scb_info_t), GFP_KERNEL);
> > | + if (!scb_info)
> > | + return;
> > | +
> > | scb_info->chip = chip;
> > | scb_info->scb_desc = scb;
> > |
> >
> > This seems to be missing some other cleanup on the failure path,
> > like it does below in the same function:
> >
> > snd_info_free_entry(entry);
> oops, you're right. Thanks Randy. Will fix that.
>
Corrected version is bellow.
./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c | 8
+++++++-
1 files changed, 7 insertions(+), 1 deletion(-)
Signed-off-by: Yury Umanets <torque@ukrpost.net>
diff -rupN ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c
./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c
--- ./linux-2.6.6/sound/pci/cs46xx/dsp_spos_scb_lib.c Mon May 10
05:33:20 2004
+++ ./linux-2.6.6-modified/sound/pci/cs46xx/dsp_spos_scb_lib.c Sun Jun
6 20:43:39 2004
@@ -246,6 +246,12 @@ void cs46xx_dsp_proc_register_scb_desc (
if ((entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
ins->proc_dsp_dir)) != NULL) {
scb_info = kmalloc(sizeof(proc_scb_info_t), GFP_KERNEL);
+ if (!scb_info) {
+ snd_info_free_entry(entry);
+ entry = NULL;
+ goto out;
+ }
+
scb_info->chip = chip;
scb_info->scb_desc = scb;
@@ -262,7 +268,7 @@ void cs46xx_dsp_proc_register_scb_desc (
entry = NULL;
}
}
-
+out:
scb->proc_info = entry;
}
}
--
umka
^ permalink raw reply [flat|nested] 4+ messages in thread
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2004-06-06 16:06 [PATCH] 2.6.6 memory allocation checks in cs46xx_dsp_proc_register_scb_desc() Yury Umanets
2004-06-06 17:20 ` Randy.Dunlap
2004-06-06 17:40 ` Yury Umanets
2004-06-06 17:54 ` Yury Umanets
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