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Staging: media: atomisp: Use kmalloc_array instead of kmalloc

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Prefer kmalloc_array over kmalloc with multiply
because kmalloc_array performs additional checks
before memory allocation.

Fix the following issue reported by checkpatch.pl:
* WARNING: Prefer kmalloc_array over kmalloc with multiply

Signed-off-by: Georgiana Chelu <georgiana.chelu93@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Georgiana Chelu 2017-09-26 09:01:29 -07:00 committed by Greg Kroah-Hartman
parent 4d962df5a7
commit 63342e75e6
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c
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@ -725,7 +725,7 @@ static int alloc_private_pages(struct hmm_buffer_object *bo,
pgnr = bo->pgnr;
bo->page_obj = kmalloc(sizeof(struct hmm_page_object) * pgnr,
bo->page_obj = kmalloc_array(pgnr, sizeof(struct hmm_page_object),
GFP_KERNEL);
if (unlikely(!bo->page_obj)) {
dev_err(atomisp_dev, "out of memory for bo->page_obj\n");
@ -990,13 +990,13 @@ static int alloc_user_pages(struct hmm_buffer_object *bo,
struct vm_area_struct *vma;
struct page **pages;
pages = kmalloc(sizeof(struct page *) * bo->pgnr, GFP_KERNEL);
pages = kmalloc_array(bo->pgnr, sizeof(struct page *), GFP_KERNEL);
if (unlikely(!pages)) {
dev_err(atomisp_dev, "out of memory for pages...\n");
return -ENOMEM;
}
bo->page_obj = kmalloc(sizeof(struct hmm_page_object) * bo->pgnr,
bo->page_obj = kmalloc_array(bo->pgnr, sizeof(struct hmm_page_object),
GFP_KERNEL);
if (unlikely(!bo->page_obj)) {
dev_err(atomisp_dev, "out of memory for bo->page_obj...\n");
@ -1363,7 +1363,7 @@ void *hmm_bo_vmap(struct hmm_buffer_object *bo, bool cached)
bo->status &= ~(HMM_BO_VMAPED | HMM_BO_VMAPED_CACHED);
}
pages = kmalloc(sizeof(*pages) * bo->pgnr, GFP_KERNEL);
pages = kmalloc_array(bo->pgnr, sizeof(*pages), GFP_KERNEL);
if (unlikely(!pages)) {
mutex_unlock(&bo->mutex);
dev_err(atomisp_dev, "out of memory for pages...\n");