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amdgpu: Cleanly handle ENOMEM on result in amdgpu_bo_list_create()

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Move the allocation of result prior to the IOCTL so we can cleanly
backtrack if the allocation fails.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom St Denis 2015-10-09 12:46:40 -04:00 • committed by Alex Deucher
parent 1a6a8f34a0
commit b176372af4
1 changed files with 9 additions and 2 deletions
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11
amdgpu/amdgpu_bo.c
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@ -591,6 +591,12 @@ int amdgpu_bo_list_create(amdgpu_device_handle dev,
if (!list)
return -ENOMEM;
*result = malloc(sizeof(struct amdgpu_bo_list));
if (!*result) {
free(list);
return -ENOMEM;
}
memset(&args, 0, sizeof(args));
args.in.operation = AMDGPU_BO_LIST_OP_CREATE;
args.in.bo_number = number_of_resources;
@ -608,10 +614,11 @@ int amdgpu_bo_list_create(amdgpu_device_handle dev,
r = drmCommandWriteRead(dev->fd, DRM_AMDGPU_BO_LIST,
&args, sizeof(args));
free(list);
if (r)
if (r) {
free(*result);
return r;
}
*result = malloc(sizeof(struct amdgpu_bo_list));
(*result)->dev = dev;
(*result)->handle = args.out.list_handle;
return 0;