[media] Prevent null pointer derefernce of pdev
Make sure pdev is not dereferenced when it is null
Signed-off-by: Huzaifa Sidhpurwala <huzaifas@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index 780af5f..356cd42 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -1850,7 +1850,6 @@
} else {
/* Device is closed, so we can safely unregister it */
PWC_DEBUG_PROBE("Unregistering video device in disconnect().\n");
- pwc_cleanup(pdev);
disconnect_out:
/* search device_hint[] table if we occupy a slot, by any chance */
@@ -1860,6 +1859,7 @@
}
mutex_unlock(&pdev->modlock);
+ pwc_cleanup(pdev);
}