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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-kbuild@vger.kernel.org, Michal Marek <mmarek@suse.com>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 09/10] scripts/basic/fixdep: Complete error handling in print_cmdline()
Date: Fri, 28 Oct 2016 10:40:30 +0200	[thread overview]
Message-ID: <d4bd9a09-d413-a073-c2d5-67933d425b87@users.sourceforge.net> (raw)
In-Reply-To: <72e07814-56e9-505a-d660-91ff20b6efea@users.sourceforge.net>

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 28 Oct 2016 09:29:59 +0200

A return value was not checked from a call of the function "printf".

This issue was detected also by using the Coccinelle software.


Add a bit of exception handling there.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 scripts/basic/fixdep.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index f5ff6eea..911347a 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -132,7 +132,12 @@ static void usage(void)
  */
 static void print_cmdline(void)
 {
-	printf("cmd_%s := %s\n\n", target, cmdline);
+	if (printf("cmd_%s := %s\n\n", target, cmdline) < 10) {
+		int code = errno;
+
+		perror("fixdep: print_cmdline");
+		exit(code);
+	}
 }
 
 /*
-- 
2.10.1

  parent reply	other threads:[~2016-10-28  8:40 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-28  8:30 [PATCH 00/10] scripts/basic: Fine-tuning for seven function implementations SF Markus Elfring
2016-10-28  8:31 ` [PATCH 01/10] scripts/basic/bin2c: Complete error handling in main() SF Markus Elfring
2016-10-28 22:32   ` Jim Davis
2016-11-02 15:41   ` Masahiro Yamada
2016-11-02 17:48     ` SF Markus Elfring
2016-11-02 18:26       ` Masahiro Yamada
2016-11-02 18:46         ` SF Markus Elfring
2016-11-03 15:42           ` Michal Marek
2016-11-03 19:48             ` SF Markus Elfring
2016-11-04 12:19               ` Michal Marek
2016-11-04 12:48                 ` SF Markus Elfring
2016-10-28  8:32 ` [PATCH 02/10] scripts/basic/fixdep: Complete error handling in print_deps() SF Markus Elfring
2016-10-28  8:33 ` [PATCH 03/10] scripts/basic/fixdep: Use the symbol "MAP_FAILED" " SF Markus Elfring
2016-10-28  8:34 ` [PATCH 04/10] scripts/basic/fixdep: Fix error log output " SF Markus Elfring
2016-10-28  8:35 ` [PATCH 05/10] scripts/basic/fixdep: Complete error handling in parse_dep_file() SF Markus Elfring
2016-10-28  8:36 ` [PATCH 06/10] scripts/basic/fixdep: Complete error handling in do_config_file() SF Markus Elfring
2016-10-28  8:37 ` [PATCH 07/10] scripts/basic/fixdep: Fix error log output " SF Markus Elfring
2016-10-28  8:39 ` [PATCH 08/10] scripts/basic/fixdep: Complete error handling in print_config() SF Markus Elfring
2016-10-28  8:40 ` SF Markus Elfring [this message]
2016-10-28 23:42   ` [PATCH 09/10] scripts/basic/fixdep: Complete error handling in print_cmdline() Jim Davis
2016-10-30 15:17     ` SF Markus Elfring
2016-11-02 15:35     ` [PATCH 09/10] " Masahiro Yamada
2016-11-02 17:38       ` SF Markus Elfring
2016-11-02 18:30         ` Masahiro Yamada
2016-11-03 15:57           ` Michal Marek
2016-10-28  8:41 ` [PATCH 10/10] scripts/basic/fixdep: Combine two fprintf() calls into one fputs() call in usage() SF Markus Elfring
2017-11-10 18:32 ` [PATCH 00/10] scripts/basic: Fine-tuning for seven function implementations SF Markus Elfring

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