V4L/DVB (4996): Msp3400: fix kthread_run error check

The return value of kthread_run() should be checked by IS_ERR().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c
index 295cb99..2fb9fe6 100644 (file)
--- a/drivers/media/video/msp3400-driver.c
+++ b/drivers/media/video/msp3400-driver.c
@@ -949,7 +949,7 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
        if (thread_func) {
                state->kthread = kthread_run(thread_func, client, "msp34xx");
 
-               if (state->kthread == NULL)
+               if (IS_ERR(state->kthread))
                        v4l_warn(client, "kernel_thread() failed\n");
                msp_wake_thread(client);
        }