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[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 <riverful.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2012-04-30 12:10:58 -03:00 committed by Mauro Carvalho Chehab
parent d310f478e2
commit 41df5bf088
1 changed files with 2 additions and 0 deletions
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2
drivers/media/video/s5p-fimc/fimc-mdevice.c
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@ -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;