* linux-next: build warning after merge of the pidfd-fixes tree
@ 2020-03-09 21:07 Stephen Rothwell
2020-03-09 22:37 ` Christian Brauner
0 siblings, 1 reply; 2+ messages in thread
From: Stephen Rothwell @ 2020-03-09 21:07 UTC (permalink / raw)
To: Christian Brauner; +Cc: Linux Next Mailing List, Linux Kernel Mailing List
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Hi all,
After merging the pidfd-fixes tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:
In file included from include/linux/rwsem.h:18,
from include/linux/mm_types.h:11,
from include/linux/mmzone.h:21,
from include/linux/gfp.h:6,
from include/linux/mm.h:10,
from kernel/pid.c:30:
kernel/pid.c: In function 'alloc_pid':
include/linux/err.h:26:9: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
26 | return (void *) error;
| ^~~~~~~~~~~~~~
kernel/pid.c:168:6: note: 'retval' was declared here
168 | int retval;
| ^~~~~~
Introduced by commit
8deb24dcb89c ("pid: make ENOMEM return value more obvious")
--
Cheers,
Stephen Rothwell
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: linux-next: build warning after merge of the pidfd-fixes tree
2020-03-09 21:07 linux-next: build warning after merge of the pidfd-fixes tree Stephen Rothwell
@ 2020-03-09 22:37 ` Christian Brauner
0 siblings, 0 replies; 2+ messages in thread
From: Christian Brauner @ 2020-03-09 22:37 UTC (permalink / raw)
To: Stephen Rothwell
Cc: Christian Brauner, Linux Next Mailing List, Linux Kernel Mailing List
On Tue, Mar 10, 2020 at 08:07:58AM +1100, Stephen Rothwell wrote:
> Hi all,
>
> After merging the pidfd-fixes tree, today's linux-next build (arm
> multi_v7_defconfig) produced this warning:
>
> In file included from include/linux/rwsem.h:18,
> from include/linux/mm_types.h:11,
> from include/linux/mmzone.h:21,
> from include/linux/gfp.h:6,
> from include/linux/mm.h:10,
> from kernel/pid.c:30:
> kernel/pid.c: In function 'alloc_pid':
> include/linux/err.h:26:9: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
> 26 | return (void *) error;
> | ^~~~~~~~~~~~~~
> kernel/pid.c:168:6: note: 'retval' was declared here
> 168 | int retval;
> | ^~~~~~
>
> Introduced by commit
>
> 8deb24dcb89c ("pid: make ENOMEM return value more obvious")
Thanks, will fix now. Sorry for the noise!
Christian;
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