media: lgdt3306a: fix a missing check of return value

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If lgdt3306a_read_reg() fails, the read data in "val" is incorrect, thus
shouldn't be further used. The fix inserts a check for the return value
of lgdt3306a_read_reg(). If it fails, goto fail.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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Kangjie Lu 2018-12-20 02:48:42 -05:00 • committed by Mauro Carvalho Chehab

parent f27dd0ad68

commit c9b7d8f252

1 changed files with 4 additions and 1 deletions

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drivers/media/dvb-frontends/lgdt3306a.c

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