[AMD Official Use Only - General]
Tested-by: Harish Kasiviswanthan <harish.kasiviswant...@amd.com>
-----Original Message-----
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> On Behalf Of Felix
Kuehling
Sent: Wednesday, April 10, 2024 4:05 PM
To: amd-gfx@lists.freedesktop.org
Cc: Chen, Xiaogang <xiaogang.c...@amd.com>
Subject: [PATCH] drm/amdkfd: Fix memory leak in create_process failure
Fix memory leak due to a leaked mmget reference on an error handling
code path that is triggered when attempting to create KFD processes
while a GPU reset is in progress.
Fixes: 0ab2d7532b05 ("drm/amdkfd: prepare per-process debug enable and disable")
CC: Xiaogang Chen <xiaogang.c...@amd.com>
Signed-off-by: Felix Kuehling <felix.kuehl...@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 717a60d7a4ea..b79986412cd8 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -819,9 +819,9 @@ struct kfd_process *kfd_create_process(struct task_struct
*thread)
mutex_lock(&kfd_processes_mutex);
if (kfd_is_locked()) {
- mutex_unlock(&kfd_processes_mutex);
pr_debug("KFD is locked! Cannot create process");
- return ERR_PTR(-EINVAL);
+ process = ERR_PTR(-EINVAL);
+ goto out;
}
/* A prior open of /dev/kfd could have already created the process. */
--
2.34.1
