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| author | Shi Weihua <shiwh@cn.fujitsu.com> | 2008-05-23 13:04:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-24 09:56:13 -0700 |
| commit | 7b26655f6208fdefa9ab0adc016116324f8d4ba8 (patch) | |
| tree | 07f081c52da72a9730861c74ebea86ea48d402e2 /kernel/sys.c | |
| parent | f99c90094bffbe1cf38ef66f198a808c14a02d56 (diff) | |
| download | linux-7b26655f6208fdefa9ab0adc016116324f8d4ba8.tar.gz linux-7b26655f6208fdefa9ab0adc016116324f8d4ba8.tar.bz2 linux-7b26655f6208fdefa9ab0adc016116324f8d4ba8.zip | |
sys_prctl(): fix return of uninitialized value
If none of the switch cases match, the PR_SET_PDEATHSIG and
PR_SET_DUMPABLE cases of the switch statement will never write to local
variable `error'.
Signed-off-by: Shi Weihua <shiwh@cn.fujitsu.com>
Cc: Andrew G. Morgan <morgan@kernel.org>
Acked-by: "Serge E. Hallyn" <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 895d2d4c9493..14e97282eb6c 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1652,7 +1652,7 @@ asmlinkage long sys_umask(int mask) asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) { - long uninitialized_var(error); + long error = 0; if (security_task_prctl(option, arg2, arg3, arg4, arg5, &error)) return error; @@ -1701,9 +1701,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, error = PR_TIMING_STATISTICAL; break; case PR_SET_TIMING: - if (arg2 == PR_TIMING_STATISTICAL) - error = 0; - else + if (arg2 != PR_TIMING_STATISTICAL) error = -EINVAL; break; |