[PATCH] media: i2c: adp1653: fix error handling from a call to adp1653_get_fault

From: Colin King
Date: Fri Feb 26 2021 - 18:23:33 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

The error check on rval from the call to adp1653_get_fault currently
returns if rval is non-zero. This appears to be incorrect as the
following if statement checks for various bit settings in rval so
clearly rval is expected to be non-zero at that point. Coverity
flagged the if statement up as deadcode. Fix this so the error
return path only occurs when rval is negative.

Addresses-Coverity: ("Logically dead code")
Fixes: 287980e49ffc ("remove lots of IS_ERR_VALUE abuses")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/media/i2c/adp1653.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/adp1653.c b/drivers/media/i2c/adp1653.c
index 522a0b10e415..1a4878385394 100644
--- a/drivers/media/i2c/adp1653.c
+++ b/drivers/media/i2c/adp1653.c
@@ -170,7 +170,7 @@ static int adp1653_set_ctrl(struct v4l2_ctrl *ctrl)
int rval;

rval = adp1653_get_fault(flash);
- if (rval)
+ if (rval < 0)
return rval;
if ((rval & (ADP1653_REG_FAULT_FLT_SCP |
ADP1653_REG_FAULT_FLT_OT |
--
2.30.0