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authorDavide Libenzi <davidel@xmailserver.org>2008-04-10 21:29:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-11 08:06:44 -0700
commit0859ab59a8a48d2a96b9d2b7100889bcb6bb5818 (patch)
treeafaa1f394cdd14c5ac3d3c4b956a6ac440c2c479 /fs/signalfd.c
parent544451a1a36b06f43fc67112ede3b92e6203eb9d (diff)
downloadlinux-stericsson-0859ab59a8a48d2a96b9d2b7100889bcb6bb5818.tar.gz
signalfd: fix for incorrect SI_QUEUE user data reporting
Michael Kerrisk found out that signalfd was not reporting back user data pushed using sigqueue: http://groups.google.com/group/linux.kernel/msg/9397cab8551e3123 The following patch makes signalfd report back the ssi_ptr and ssi_int members of the signalfd_siginfo structure. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Acked-by: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/signalfd.c')
-rw-r--r--fs/signalfd.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/signalfd.c b/fs/signalfd.c
index cb2b63ae0bf4..8ead0db35933 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -111,9 +111,14 @@ static int signalfd_copyinfo(struct signalfd_siginfo __user *uinfo,
err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid);
err |= __put_user((long) kinfo->si_ptr, &uinfo->ssi_ptr);
break;
- default: /* this is just in case for now ... */
+ default:
+ /*
+ * This case catches also the signals queued by sigqueue().
+ */
err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid);
err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid);
+ err |= __put_user((long) kinfo->si_ptr, &uinfo->ssi_ptr);
+ err |= __put_user(kinfo->si_int, &uinfo->ssi_int);
break;
}