From: Ofir Bitton <obitton@habana.ai>
Date: Tue, 6 Jul 2021 09:06:15 +0000 (+0300)
Subject: habanalabs: missing mutex_unlock in process kill procedure
X-Git-Tag: howlett/maple/20220722_2~2323^2^2~47
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=40e35d195d8c18016011ae3e8ffbac765edc3e6f;p=users%2Fjedix%2Flinux-maple.git

habanalabs: missing mutex_unlock in process kill procedure

missing mutex unlock once driver is giving up killing user processes.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---

diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c
index 86426052a191..28fe15a28361 100644
--- a/drivers/misc/habanalabs/common/device.c
+++ b/drivers/misc/habanalabs/common/device.c
@@ -822,6 +822,7 @@ static int device_kill_open_processes(struct hl_device *hdev, u32 timeout)
 		} else {
 			dev_warn(hdev->dev,
 				"Can't get task struct for PID so giving up on killing process\n");
+			mutex_unlock(&hdev->fpriv_list_lock);
 			return -ETIME;
 		}
 	}