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-rw-r--r--linux-Fix-mq_timereceive-check-for-32-bit-fallback-c.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/linux-Fix-mq_timereceive-check-for-32-bit-fallback-c.patch b/linux-Fix-mq_timereceive-check-for-32-bit-fallback-c.patch
new file mode 100644
index 0000000..ca1d348
--- /dev/null
+++ b/linux-Fix-mq_timereceive-check-for-32-bit-fallback-c.patch
@@ -0,0 +1,31 @@
+From 71d87d85bf54f6522813aec97c19bdd24997341e Mon Sep 17 00:00:00 2001
+From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
+Date: Thu, 30 Jun 2022 09:08:31 -0300
+Subject: [PATCH] linux: Fix mq_timereceive check for 32 bit fallback code (BZ
+ 29304)
+
+On success, mq_receive() and mq_timedreceive() return the number of
+bytes in the received message, so it requires to check if the value
+is larger than 0.
+
+Checked on i686-linux-gnu.
+---
+ sysdeps/unix/sysv/linux/mq_timedreceive.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sysdeps/unix/sysv/linux/mq_timedreceive.c b/sysdeps/unix/sysv/linux/mq_timedreceive.c
+index 834cd7a..5bf1e0a 100644
+--- a/sysdeps/unix/sysv/linux/mq_timedreceive.c
++++ b/sysdeps/unix/sysv/linux/mq_timedreceive.c
+@@ -41,7 +41,7 @@ ___mq_timedreceive_time64 (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len
+ {
+ int r = SYSCALL_CANCEL (mq_timedreceive_time64, mqdes, msg_ptr, msg_len,
+ msg_prio, abs_timeout);
+- if (r == 0 || errno != ENOSYS)
++ if (r >= 0 || errno != ENOSYS)
+ return r;
+ __set_errno (EOVERFLOW);
+ return -1;
+--
+1.8.3.1
+