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authorHeiko Carstens <heiko.carstens@de.ibm.com>2014-03-04 12:39:03 +0100
committerJiri Slaby <jslaby@suse.cz>2015-02-02 15:59:30 +0100
commit4602761bac19ae3373f003bc3cabc4546c8e5207 (patch)
tree8841a0c2fa2844223291b19e36d78d845b06f5c4 /ipc
parent910f9e7dbee0aef348cecd53d54fb70f77e8321b (diff)
ipc/compat_sys_msgrcv: change msgtyp type from long to compat_long_t
commit 291fdb0bcebd5e8db6af767c1fdc522167dad73d upstream. Change the type of compat_sys_msgrcv's msgtyp parameter from long to compat_long_t, since compat user space passes only a 32 bit signed value. Let the compat wrapper do proper sign extension to 64 bit of this parameter. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/compat.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ipc/compat.c b/ipc/compat.c
index d3b376025e9b..e0012184f65e 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -430,9 +430,9 @@ COMPAT_SYSCALL_DEFINE4(msgsnd, int, msqid, compat_uptr_t, msgp,
}
COMPAT_SYSCALL_DEFINE5(msgrcv, int, msqid, compat_uptr_t, msgp,
- compat_ssize_t, msgsz, long, msgtyp, int, msgflg)
+ compat_ssize_t, msgsz, compat_long_t, msgtyp, int, msgflg)
{
- return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, msgtyp,
+ return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, (long)msgtyp,
msgflg, compat_do_msg_fill);
}