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| author | Jason Baron <jbaron@redhat.com> | 2006-01-18 17:43:03 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-18 19:20:22 -0800 |
| commit | c21761f168894b356626c847fe13be39605d76b4 (patch) | |
| tree | 7b3a1efba6ae34ca313619474b0060beff8267af | |
| parent | 147b31cf09ee493aa71c87c0dd2eef74b6b2aeba (diff) | |
| download | blackbird-op-linux-c21761f168894b356626c847fe13be39605d76b4.tar.gz blackbird-op-linux-c21761f168894b356626c847fe13be39605d76b4.zip | |
[PATCH] fix sched_setscheduler semantics
Currently, a negative policy argument passed into the
'sys_sched_setscheduler()' system call, will return with success. However,
the manpage for 'sys_sched_setscheduler' says:
EINVAL The scheduling policy is not one of the recognized policies, or the
parameter p does not make sense for the policy.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | kernel/sched.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 788ecce1e0e4..3ee2ae45125f 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -3850,6 +3850,10 @@ do_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param) asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param) { + /* negative values for policy are not valid */ + if (policy < 0) + return -EINVAL; + return do_sched_setscheduler(pid, policy, param); } |
