4.13-stable review patch. If anyone has any objections, please let me know.
------------------ From: Arnd Bergmann <[email protected]> Replaces upstream commit 0b2e9e7947e7 ("media: staging/imx: remove confusing IS_ERR_OR_NULL usage") We get a harmless warning about a potential uninitialized variable use in the driver: drivers/staging/media/imx/imx-media-of.c: In function 'of_parse_subdev': drivers/staging/media/imx/imx-media-of.c:216:4: warning: 'remote_np' may be used uninitialized in this function [-Wmaybe-uninitialized] I reworked that code to be easier to understand by gcc in mainline, but that commit is too large to backport. This is a much simpler workaround, avoiding the warning by adding a fake initialization to the variable. The driver was only introduced in linux-4.13, so the workaround is not needed for earlier stable kernels. Fixes: e130291212df ("[media] media: Add i.MX media core driver") Cc: [email protected] Cc: Philipp Zabel <[email protected]> Cc: Steve Longerbeam <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/staging/media/imx/imx-media-of.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/staging/media/imx/imx-media-of.c +++ b/drivers/staging/media/imx/imx-media-of.c @@ -167,7 +167,7 @@ of_parse_subdev(struct imx_media_dev *im of_parse_sensor(imxmd, imxsd, sd_np); for (i = 0; i < num_pads; i++) { - struct device_node *epnode = NULL, *port, *remote_np; + struct device_node *epnode = NULL, *port, *remote_np = NULL; struct imx_media_subdev *remote_imxsd; struct imx_media_pad *pad; int remote_pad;
