From 63342e75e661c1b71a0f33a4329726bcf383b342 Mon Sep 17 00:00:00 2001 From: Georgiana Chelu Date: Tue, 26 Sep 2017 09:01:29 -0700 Subject: [PATCH] Staging: media: atomisp: Use kmalloc_array instead of kmalloc 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 Signed-off-by: Greg Kroah-Hartman --- drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c index 11162f595fc7..5232327f5d9c 100644 --- a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c @@ -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"); -- 2.30.2