[patch] IR: ir-raw-event: null pointer dereference

[Dan Carpenter]

The original code dereferenced ir->raw after freeing it and setting it
to NULL.

Signed-off-by: Dan Carpenter <erro...@gmail.com>

diff --git a/drivers/media/IR/ir-raw-event.c b/drivers/media/IR/ir-raw-event.c
index 43094e7..8e0e1b1 100644
--- a/drivers/media/IR/ir-raw-event.c
+++ b/drivers/media/IR/ir-raw-event.c
@@ -279,9 +279,11 @@ int ir_raw_event_register(struct input_dev *input_dev)
                        "rc%u",  (unsigned int)ir->devno);
 
        if (IS_ERR(ir->raw->thread)) {
+               int ret = PTR_ERR(ir->raw->thread);
+
                kfree(ir->raw);
                ir->raw = NULL;
-               return PTR_ERR(ir->raw->thread);
+               return ret;
        }
 
        mutex_lock(&ir_raw_handler_lock);
--
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