media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning
authorHans Verkuil <hverkuil-cisco@xs4all.nl>
Thu, 8 Oct 2020 11:59:13 +0000 (13:59 +0200)
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Thu, 8 Oct 2020 12:15:14 +0000 (14:15 +0200)
commitc386e0797d26a32e354daf4480c5d40165db66a1
tree4bdec622216e0a3dd9c064d6c120b529a73552f0
parent2311072d9905b1f810a3c0665362ee552f076c26
media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning

drxk_hard.c: In function 'hi_command.constprop':
drxk_hard.c:1016:5: warning: 'wait_cmd' may be used uninitialized in this function [-Wmaybe-uninitialized]
 1015 |   } while ((status < 0) && (retry_count < DRXK_MAX_RETRIES)
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1016 |     && (wait_cmd != 0));
      |     ^~~~~~~~~~~~~~~~~~

The underlying cause is that the while condition is wrong. It should be:

(status < 0 || wait_cmd) && (retry_count < DRXK_MAX_RETRIES)

'wait_cmd' is only valid if '!(status < 0)'.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
drivers/media/dvb-frontends/drxk_hard.c