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fcntl: Don't set si_code to SI_SIGIO when sig == SIGPOLL

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When fixing things to avoid ambiguous cases I had a thinko
and included SIGPOLL/SIGIO in with all of the other signals
that have signal specific si_codes.  Which is completely wrong.

Fix that.

Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2017-09-18 22:51:14 -05:00
parent 2bd6bf03f4
commit 54640d2387
1 changed files with 1 additions and 1 deletions
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2
fs/fcntl.c
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@ -749,7 +749,7 @@ static void send_sigio_to_task(struct task_struct *p,
* specific si_codes. In that case use SI_SIGIO instead
* to remove the ambiguity.
*/
if (sig_specific_sicodes(signum))
if ((signum != SIGPOLL) && sig_specific_sicodes(signum))
si.si_code = SI_SIGIO;
/* Make sure we are called with one of the POLL_*