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From 729d6743e262096ea1abbf7df687986e14e62053 Mon Sep 17 00:00:00 2001
From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Fri, 14 Dec 2018 11:57:02 -0500
Subject: [PATCH 2730/2940] drm/amdkfd: Fix handling of return code of
dma_buf_get
On errors, dma_buf_get returns a negative error code, rather than NULL.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 3623538baf6f..db6f27fe3d5a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1629,8 +1629,8 @@ static int kfd_ioctl_import_dmabuf(struct file *filep,
return -EINVAL;
dmabuf = dma_buf_get(args->dmabuf_fd);
- if (!dmabuf)
- return -EINVAL;
+ if (IS_ERR(dmabuf))
+ return PTR_ERR(dmabuf);
mutex_lock(&p->mutex);
--
2.17.1
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