[PATCH] cdrom: Remove redundant variable and its assignment

* [PATCH] cdrom: Remove redundant variable and its assignment
@ 2021-10-21  7:46 Phillip Potter
  2021-10-21 14:23 ` Jens Axboe
  0 siblings, 1 reply; 2+ messages in thread
From: Phillip Potter @ 2021-10-21  7:46 UTC (permalink / raw)
  To: axboe; +Cc: linux-block

From: luo penghao <luo.penghao@zte.com.cn>

Variable is not used in functions, and its assignment is redundant too.
So it should be deleted. Also the inner-most set of parentheses is no
longer needed.

The clang_analyzer complains as follows:

drivers/cdrom/cdrom.c:877: warning:

Although the value stored to 'ret' is used in the enclosing expression,
the value is never actually read from 'ret'.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: luo penghao <luo.penghao@zte.com.cn>
Link: https://lore.kernel.org/all/20211020024229.1036219-1-luo.penghao@zte.com.cn
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
---
 drivers/cdrom/cdrom.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 89a68457820a..9877e413fce3 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -871,7 +871,7 @@ static void cdrom_mmc3_profile(struct cdrom_device_info *cdi)
 {
 	struct packet_command cgc;
 	char buffer[32];
-	int ret, mmc3_profile;
+	int mmc3_profile;
 
 	init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
 
@@ -881,7 +881,7 @@ static void cdrom_mmc3_profile(struct cdrom_device_info *cdi)
 	cgc.cmd[8] = sizeof(buffer);		/* Allocation Length */
 	cgc.quiet = 1;
 
-	if ((ret = cdi->ops->generic_packet(cdi, &cgc)))
+	if (cdi->ops->generic_packet(cdi, &cgc))
 		mmc3_profile = 0xffff;
 	else
 		mmc3_profile = (buffer[6] << 8) | buffer[7];
-- 
2.31.1


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