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authorRichard Weinberger <richard@nod.at>2014-06-02 22:38:34 +0200
committerIngo Molnar <mingo@kernel.org>2014-06-05 11:07:43 +0200
commitb14ed2c273f8ab872ae4e6735fe5ab09cb14b8c3 (patch)
treef7575256a33d949f4ce3919fcd9e8b1f471133b9 /kernel
parente9dd685ce81815811fb4da72e6ab10a694ac8468 (diff)
sched: Fix sched_policy < 0 comparison
attr.sched_policy is u32, therefore a comparison against < 0 is never true. Fix this by casting sched_policy to int. This issue was reported by coverity CID 1219934. Fixes: dbdb22754fde ("sched: Disallow sched_attr::sched_policy < 0") Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1401741514-7045-1-git-send-email-richard@nod.at Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 86f3890c3d08..540542b93f9f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3685,7 +3685,7 @@ SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr,
if (retval)
return retval;
- if (attr.sched_policy < 0)
+ if ((int)attr.sched_policy < 0)
return -EINVAL;
rcu_read_lock();