linux-kernel - [PATCH] staging: android: ion: ion_cma

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Message-Id: <1405829455-5866-1-git-send-email-tranmanphong@gmail.com>
Date:	Sun, 20 Jul 2014 11:10:55 +0700
From:	Phong Tran <tranmanphong@...il.com>
To:	gregkh@...uxfoundation.org, john.stultz@...aro.org,
	ccross@...roid.com, tranmanphong@...il.com,
	fabio.estevam@...escale.com, rebecca@...roid.com,
	benjamin.gaignard@...aro.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] staging: android: ion: ion_cma_heap.c: Fix checkpatch warning

This patch fix coding style:

- Remove "fail memory allocation" waring
- Remove return of void function

Tested by compilation only

Signed-off-by: Phong Tran <tranmanphong@...il.com>
---
 drivers/staging/android/ion/ion_cma_heap.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c
index ce68ecf..f8cabcb 100644
--- a/drivers/staging/android/ion/ion_cma_heap.c
+++ b/drivers/staging/android/ion/ion_cma_heap.c
@@ -76,10 +76,8 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer,
 		return -EINVAL;
 
 	info = kzalloc(sizeof(struct ion_cma_buffer_info), GFP_KERNEL);
-	if (!info) {
-		dev_err(dev, "Can't allocate buffer info\n");
+	if (!info)
 		return ION_CMA_ALLOCATE_FAILED;
-	}
 
 	info->cpu_addr = dma_alloc_coherent(dev, len, &(info->handle),
 						GFP_HIGHUSER | __GFP_ZERO);
@@ -90,10 +88,8 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer,
 	}
 
 	info->table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
-	if (!info->table) {
-		dev_err(dev, "Fail to allocate sg table\n");
+	if (!info->table)
 		goto free_mem;
-	}
 
 	if (ion_cma_get_sgtable
 	    (dev, info->table, info->cpu_addr, info->handle, len))
@@ -155,7 +151,6 @@ static struct sg_table *ion_cma_heap_map_dma(struct ion_heap *heap,
 static void ion_cma_heap_unmap_dma(struct ion_heap *heap,
 				   struct ion_buffer *buffer)
 {
-	return;
 }
 
 static int ion_cma_mmap(struct ion_heap *mapper, struct ion_buffer *buffer,
-- 
1.9.3

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