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media: v4l2-fwnode: Return -EINVAL for invalid bus-type

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[ Upstream commit 69baf338fc ]

Return -EINVAL if invalid bus-type is detected while parsing endpoints.

Fixes: 26c1126c9b ("media: v4l: fwnode: Use media bus type for bus parser selection")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lad Prabhakar 2020-09-17 18:08:47 +02:00 committed by Greg Kroah-Hartman
parent d8d35c1ea8
commit 2c06ac46f8
2 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/media/v4l2-core/v4l2-fwnode.c
View File

@ -93,7 +93,7 @@ v4l2_fwnode_bus_type_to_mbus(enum v4l2_fwnode_bus_type type)
const struct v4l2_fwnode_bus_conv *conv =
get_v4l2_fwnode_bus_conv_by_fwnode_bus(type);
return conv ? conv->mbus_type : V4L2_MBUS_UNKNOWN;
return conv ? conv->mbus_type : V4L2_MBUS_INVALID;
}
static const char *
@ -436,6 +436,10 @@ static int __v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwnode,
v4l2_fwnode_mbus_type_to_string(vep->bus_type),
vep->bus_type);
mbus_type = v4l2_fwnode_bus_type_to_mbus(bus_type);
if (mbus_type == V4L2_MBUS_INVALID) {
pr_debug("unsupported bus type %u\n", bus_type);
return -EINVAL;
}
if (vep->bus_type != V4L2_MBUS_UNKNOWN) {
if (mbus_type != V4L2_MBUS_UNKNOWN &&

2
include/media/v4l2-mediabus.h
View File

@ -78,6 +78,7 @@
* @V4L2_MBUS_CCP2: CCP2 (Compact Camera Port 2)
* @V4L2_MBUS_CSI2_DPHY: MIPI CSI-2 serial interface, with D-PHY
* @V4L2_MBUS_CSI2_CPHY: MIPI CSI-2 serial interface, with C-PHY
* @V4L2_MBUS_INVALID: invalid bus type (keep as last)
*/
enum v4l2_mbus_type {
V4L2_MBUS_UNKNOWN,
@ -87,6 +88,7 @@ enum v4l2_mbus_type {
V4L2_MBUS_CCP2,
V4L2_MBUS_CSI2_DPHY,
V4L2_MBUS_CSI2_CPHY,
V4L2_MBUS_INVALID,
};
/**