From: Sylwester Nawrocki Date: Mon, 30 Apr 2012 15:10:58 +0000 (-0300) Subject: [media] s5p-fimc: Avoid crash with null platform_data X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=41df5bf088a10e54c0613ec4d7350b74d5ab8252;p=openwrt%2Fstaging%2Fblogic.git [media] s5p-fimc: Avoid crash with null platform_data In commit "s5p-fimc: Handle sub-device interdependencies using deferred.." there was a check added for pdata->num_clients without first checking pdata against NULL. This causes a crash when platform_data is not set, which is a valid use case. Fix this regression by skipping the MIPI-CSIS subdev registration also when pdata is null. Reported-by: HeungJun Kim Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index 75296a625a9d..f97ac02b8677 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -371,6 +371,8 @@ static int fimc_md_register_platform_entities(struct fimc_md *fmd) * Check if there is any sensor on the MIPI-CSI2 bus and * if not skip the s5p-csis module loading. */ + if (pdata == NULL) + return 0; for (i = 0; i < pdata->num_clients; i++) { if (pdata->isp_info[i].bus_type == FIMC_MIPI_CSI2) { ret = 1;