[linux-rt-devel:linux-5.11.y-rt-rebase 36/199] kernel/printk/printk.c:2145:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2244

[linux-rt-devel:linux-5.11.y-rt-rebase 36/199] kernel/printk/printk.c:2145:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2244

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
TO: John Ogness <john.ogness@linutronix.de>
CC: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.11.y-rt-rebase
head:   87401fa51512cc03c8a42bdc6e5940be76051ec5
commit: 2af6fa6260871a5adb4faf062241651587f62e30 [36/199] printk: move console printing to kthreads
:::::: branch date: 25 hours ago
:::::: commit date: 25 hours ago
config: i386-randconfig-c001-20210219 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>


"coccinelle warnings: (new ones prefixed by >>)"
>> kernel/printk/printk.c:2145:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2244

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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[PATCH] printk: fix returnvar.cocci warnings

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
TO: John Ogness <john.ogness@linutronix.de>
CC: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
CC: Petr Mladek <pmladek@suse.com>
CC: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: linux-kernel(a)vger.kernel.org

From: kernel test robot <lkp@intel.com>

kernel/printk/printk.c:2145:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2244


 Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

Fixes: 2af6fa626087 ("printk: move console printing to kthreads")
CC: John Ogness <john.ogness@linutronix.de>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.11.y-rt-rebase
head:   87401fa51512cc03c8a42bdc6e5940be76051ec5
commit: 2af6fa6260871a5adb4faf062241651587f62e30 [36/199] printk: move console printing to kthreads
:::::: branch date: 25 hours ago
:::::: commit date: 25 hours ago

Please take the patch only if it's a positive warning. Thanks!

 printk.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2142,7 +2142,6 @@ static int printk_kthread_func(void *dat
 	struct printk_record r;
 	char *ext_text = NULL;
 	size_t dropped_len;
-	int ret = -ENOMEM;
 	char *text = NULL;
 	char *write_text;
 	u64 printk_seq;
@@ -2241,7 +2240,7 @@ out:
 	pr_info("%sconsole [%s%d]: printing thread stopped\n",
 		(con->flags & CON_BOOT) ? "boot" : "",
 		con->name, con->index);
-	return ret;
+	return -ENOMEM;
 }
 
 /* Must be called within console_lock(). */