From: Colin Ian King <colin.k...@canonical.com>
Appling the mask 0x0f to the immediate return of the call to
mb86a20s_readreg will always result in a positive value, meaning that the
check of ret < 0 will never work. Instead, check for a -ve return value
first, and then mask val with 0x0f.
Kudos to Mauro Carvalho Chehab for spotting the mistake in my original fix.
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
drivers/media/dvb-frontends/mb86a20s.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/dvb-frontends/mb86a20s.c
b/drivers/media/dvb-frontends/mb86a20s.c
index fb88ddd..0fffefd 100644
--- a/drivers/media/dvb-frontends/mb86a20s.c
+++ b/drivers/media/dvb-frontends/mb86a20s.c
@@ -301,10 +301,11 @@ static int mb86a20s_read_status(struct dvb_frontend *fe,
enum fe_status *status)
*status = 0;
- val = mb86a20s_readreg(state, 0x0a) & 0xf;
+ val = mb86a20s_readreg(state, 0x0a);
if (val < 0)
return val;
+ val &= 0xf;
if (val >= 2)
*status |= FE_HAS_SIGNAL;
--
2.8.1
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