[PATCH] emu10k1: correctly handling failed thread creation

From: Insu Yun
Date: Thu Jan 28 2016 - 18:49:18 EST


Since kthread_create can be failed, it needs to check
whether error occurred and return error code.

Signed-off-by: Insu Yun <wuninsu@xxxxxxxxx>
---
sound/pci/emu10k1/emu10k1_main.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 28e2f8b..b9eac15 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1141,6 +1141,12 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu)
emu->emu1010.firmware_thread =
kthread_create(emu1010_firmware_thread, emu,
"emu1010_firmware");
+ if (IS_ERR(emu->emu1010.firmware_thread)) {
+ dev_info(emu->card->dev,
+ "emu1010: Creating thread failed\n");
+ return PTR_ERR(emu->emu1010.firmware_thread);
+ }
+
wake_up_process(emu->emu1010.firmware_thread);
}

--
1.9.1