[stgt] [PATCH] Check return value of dup() in call_program()

[Arne Redlich]

tgtd.c: In function ‘call_program’:
tgtd.c:306:4: warning: ignoring return value of ‘dup’, declared with attribute warn_unused_result

Signed-off-by: Arne Redlich <arne.redlich at googlemail.com>
---
 usr/tgtd.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/usr/tgtd.c b/usr/tgtd.c
index bc74469..fd52ed5 100644
--- a/usr/tgtd.c
+++ b/usr/tgtd.c
@@ -302,7 +302,11 @@ int call_program(const char *cmd, void (*callback)(void *data, int result),
 
 	if (!pid) {
 		close(1);
-		dup(fds[1]);
+		ret = dup(fds[1]);
+		if (ret < 0) {
+			eprintf("dup failed for: %s, %m\n", cmd);
+			exit(-1);
+		}
 		close(fds[0]);
 		execv(argv[0], argv);
 
-- 
1.7.4.1



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