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authorArnd Bergmann <arnd@arndb.de>2018-03-13 09:14:09 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2018-04-04 06:12:52 -0400
commit890f27693f2a6b9a0a7c13bf931b9d1dde050e04 (patch)
tree753f290a02025ad12ba1663a2748a915b3e76a71 /drivers/staging/media
parent2e81ae396788c7f1af327510899f06f773fe3501 (diff)
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 <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/staging/media')
-rw-r--r--drivers/staging/media/imx/imx-media-csi.c2
1 files changed, 1 insertions, 1 deletions
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;