From 890f27693f2a6b9a0a7c13bf931b9d1dde050e04 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 13 Mar 2018 09:14:09 -0400 Subject: media: imx: work around false-positive warning The IS_ERR()/PTR_ERR() combination confuses gcc to the point that it cannot prove the upstream_ep variable to be initialized: drivers/staging/media/imx/imx-media-csi.c: In function 'csi_link_validate': drivers/staging/media/imx/imx-media-csi.c:1025:20: error: 'upstream_ep' may be used uninitialized in this function [-Werror=maybe-uninitialized] priv->upstream_ep = upstream_ep; ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ drivers/staging/media/imx/imx-media-csi.c:1026:24: error: 'upstream_ep.bus_type' may be used uninitialized in this function [-Werror=maybe-uninitialized] is_csi2 = (upstream_ep.bus_type == V4L2_MBUS_CSI2); ~~~~~~~~~~~^~~~~~~~~ drivers/staging/media/imx/imx-media-csi.c:127:19: error: 'upstream_ep.bus.parallel.bus_width' may be used uninitialized in this function [-Werror=maybe-uninitialized] I could come up with no good way to rewrite this function, as a last resort, this adds an explicit zero-intialization of the structure. Fixes: 52e17089d185 ("media: imx: Don't initialize vars that won't be used") Signed-off-by: Arnd Bergmann Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/imx/imx-media-csi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/staging') diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index 1aa2be891704..00c9d625cfb5 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -1005,7 +1005,7 @@ static int csi_link_validate(struct v4l2_subdev *sd, struct v4l2_subdev_format *sink_fmt) { struct csi_priv *priv = v4l2_get_subdevdata(sd); - struct v4l2_fwnode_endpoint upstream_ep; + struct v4l2_fwnode_endpoint upstream_ep = {}; const struct imx_media_pixfmt *incc; bool is_csi2; int ret; -- cgit