[media] media/rc: fix oops on unloading module rc-core
During modiles initialization rc-core schedules work which calls
request_module() several times to load ir-*-decoder modules, but
it does not wait or cancel this work on module unloading.
rc-core should use request_module_nowait() instead, because it
anyway cannot load modules synchronously or cancel/wait pending
work on unloading, because this leads to deadlock on modules_mutex
between several "modprobe" processes.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/rc/ir-raw.c b/drivers/media/rc/ir-raw.c
index 97dc8d1..17c94be 100644
--- a/drivers/media/rc/ir-raw.c
+++ b/drivers/media/rc/ir-raw.c
@@ -31,11 +31,6 @@
static LIST_HEAD(ir_raw_handler_list);
static u64 available_protocols;
-#ifdef MODULE
-/* Used to load the decoders */
-static struct work_struct wq_load;
-#endif
-
static int ir_raw_event_thread(void *data)
{
struct ir_raw_event ev;
@@ -347,8 +342,7 @@
}
EXPORT_SYMBOL(ir_raw_handler_unregister);
-#ifdef MODULE
-static void init_decoders(struct work_struct *work)
+void ir_raw_init(void)
{
/* Load the decoder modules */
@@ -365,12 +359,3 @@
it is needed to change the CONFIG_MODULE test at rc-core.h
*/
}
-#endif
-
-void ir_raw_init(void)
-{
-#ifdef MODULE
- INIT_WORK(&wq_load, init_decoders);
- schedule_work(&wq_load);
-#endif
-}