From b312b2b25b6ac9e2eb03f4ca651b33108752de3a Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 14 Jun 2017 13:58:53 +0300
Subject: [PATCH] drm/amdkfd: NULL dereference involving create_process()
References: bsc#1051510
Patch-mainline: 4.13-rc6
Git-commit: b312b2b25b6ac9e2eb03f4ca651b33108752de3a
We accidentally return ERR_PTR(0) which is NULL. The caller is not
expecting that and it leads to an Oops.
Fixes: dd59239a9862 ("amdkfd: init aperture once per process")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -318,7 +318,8 @@ static struct kfd_process *create_proces
/* init process apertures*/
process->is_32bit_user_mode = in_compat_syscall();
- if (kfd_init_apertures(process) != 0)
+ err = kfd_init_apertures(process);
+ if (err != 0)
goto err_init_apretures;
return process;