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gpu: nvgpu: allocator: release semaphore on error

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Release rw_sema properly when block allocator runs out of memory and
returns error.

Change-Id: I6b7cf9564ae25ad1ba30edfcb1ae8a20cf7dc9db
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/601792
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Konsta Holtta
2014-11-12 17:03:32 +02:00
committed by Dan Willemsen
parent 0cc118c08c
commit 59339b4fd9
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/nvgpu/gk20a/gk20a_allocator.c
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@@ -89,8 +89,10 @@ int gk20a_allocator_block_alloc(struct gk20a_allocator *allocator,
len,
allocator->align - 1);
if ((_addr > allocator->limit - allocator->base + 1) ||
(*addr && *addr != (_addr + allocator->base)))
(*addr && *addr != (_addr + allocator->base))) {
up_write(&allocator->rw_sema);
return -ENOMEM;
}
bitmap_set(allocator->bitmap, _addr, len);
*addr = allocator->base + _addr;