Staging: usbip: usbip_start_threads(): handle kernel_thread failure
kernel_thread may fail, notice this.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 72e2092..22f93dd 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -406,8 +406,20 @@
/*
* threads are invoked per one device (per one connection).
*/
- kernel_thread(usbip_thread, (void *)&ud->tcp_rx, 0);
- kernel_thread(usbip_thread, (void *)&ud->tcp_tx, 0);
+ int retval;
+
+ retval = kernel_thread(usbip_thread, (void *)&ud->tcp_rx, 0);
+ if (retval < 0) {
+ printk(KERN_ERR "Creating tcp_rx thread for ud %p failed.\n",
+ ud);
+ return;
+ }
+ retval = kernel_thread(usbip_thread, (void *)&ud->tcp_tx, 0);
+ if (retval < 0) {
+ printk(KERN_ERR "Creating tcp_tx thread for ud %p failed.\n",
+ ud);
+ return;
+ }
/* confirm threads are starting */
wait_for_completion(&ud->tcp_rx.thread_done);