Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Jaewon Kim <> | Subject | [PATCH] staging: android: ion: return -ENOMEM in ion_cma_heap allocation failure | Date | Fri, 09 Dec 2016 14:05:30 +0900 |
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Initial Commit 349c9e138551 ("gpu: ion: add CMA heap") returns -1 in allocation failure. The returned value is passed up to userspace through ioctl. So user can misunderstand error reason as -EPERM(1) rather than -ENOMEM(12).
This patch simply changed this to return -ENOMEM.
Signed-off-by: Jaewon Kim <jaewon31.kim@samsung.com> --- drivers/staging/android/ion/ion_cma_heap.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c index 6c7de74..22b9582 100644 --- a/drivers/staging/android/ion/ion_cma_heap.c +++ b/drivers/staging/android/ion/ion_cma_heap.c @@ -24,8 +24,6 @@ #include "ion.h" #include "ion_priv.h" -#define ION_CMA_ALLOCATE_FAILED -1 - struct ion_cma_heap { struct ion_heap heap; struct device *dev; @@ -59,7 +57,7 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer, info = kzalloc(sizeof(struct ion_cma_buffer_info), GFP_KERNEL); if (!info) - return ION_CMA_ALLOCATE_FAILED; + return -ENOMEM; info->cpu_addr = dma_alloc_coherent(dev, len, &(info->handle), GFP_HIGHUSER | __GFP_ZERO); @@ -88,7 +86,7 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer, dma_free_coherent(dev, len, info->cpu_addr, info->handle); err: kfree(info); - return ION_CMA_ALLOCATE_FAILED; + return -ENOMEM; } static void ion_cma_free(struct ion_buffer *buffer) -- 1.9.1
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