cdrom: Remove redundant variable and its assignment

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>
Link: https://lore.kernel.org/r/20211021074621.901-1-phil@philpotter.co.uk
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 89a6845..9877e41 100644 (file)
--- 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];