From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Fri, 28 Oct 2016 08:40:30 +0000 Subject: [PATCH 09/10] scripts/basic/fixdep: Complete error handling in print_cmdline() Message-Id: List-Id: References: <72e07814-56e9-505a-d660-91ff20b6efea@users.sourceforge.net> In-Reply-To: <72e07814-56e9-505a-d660-91ff20b6efea@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kbuild@vger.kernel.org, Michal Marek Cc: LKML , kernel-janitors@vger.kernel.org From: Markus Elfring 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 --- 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