solve this smatch warning:
drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c:842 gmin_v1p8_ctrl() warn: variable dereferenced before check 'gs' (see line 832)
By moving the check to happen before its usage.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
index c49d27038d27..8652f71dfff6 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
@@ -829,6 +829,9 @@ static int gmin_v1p8_ctrl(struct v4l2_subdev *subdev, int on)
int ret;
int value;
+ if (!gs || gs->v1p8_on == on)
+ return 0;
+
if (gs->v1p8_gpio >= 0) {
pr_info("atomisp_gmin_platform: 1.8v power on GPIO %d\n",
gs->v1p8_gpio);
@@ -839,8 +842,6 @@ static int gmin_v1p8_ctrl(struct v4l2_subdev *subdev, int on)
pr_err("V1P8 GPIO initialization failed\n");
}
- if (!gs || gs->v1p8_on == on)
- return 0;
gs->v1p8_on = on;
if (gs->v1p8_gpio >= 0)
--
2.26.2
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