[PATCH 4/5] multipath-tools: Set errno mpath_recv_reply() when failure

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Enforce what mpath_cmd.h states "-1 on failure (with errno set)" for
mpath_recv_reply() by set errno and return -1 on failure.

Signed-off-by: Gris Ge <fge@xxxxxxxxxx>
---
 libmpathcmd/mpath_cmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libmpathcmd/mpath_cmd.c b/libmpathcmd/mpath_cmd.c
index 7fc9e98..856e6b4 100644
--- a/libmpathcmd/mpath_cmd.c
+++ b/libmpathcmd/mpath_cmd.c
@@ -141,7 +141,7 @@ int mpath_recv_reply(int fd, char **reply, unsigned int timeout)
 	*reply = NULL;
 	len = mpath_recv_reply_len(fd, timeout);
 	if (len <= 0)
-		return len;
+		return -1;
 	*reply = malloc(len);
 	if (!*reply)
 		return -1;
@@ -149,7 +149,7 @@ int mpath_recv_reply(int fd, char **reply, unsigned int timeout)
 	if (err) {
 		free(*reply);
 		*reply = NULL;
-		return err;
+		return -1;
 	}
 	return 0;
 }
-- 
1.8.3.1

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