[PATCH] imx7: fix smatch error

[Hans Verkuil]

Fixes this smatch error:

drivers/staging/media/imx/imx7-mipi-csis.c:716 mipi_csis_set_fmt() error: we 
previously assumed 'fmt' could be null (see line 709)

fmt is never NULL, so remove the 'fmt &&' condition.

Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
---
diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c 
b/drivers/staging/media/imx/imx7-mipi-csis.c
index f4674de09e83..a5f7bbc41c61 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c
@@ -706,7 +706,7 @@ static int mipi_csis_set_fmt(struct v4l2_subdev *mipi_sd,
        fmt = mipi_csis_get_format(state, cfg, sdformat->which, sdformat->pad);

        mutex_lock(&state->lock);
-       if (fmt && sdformat->pad == CSIS_PAD_SOURCE) {
+       if (sdformat->pad == CSIS_PAD_SOURCE) {
                sdformat->format = *fmt;
                goto unlock;
        }