linux-kernel - [PATCH] media: videobuf2: Return error after allocation failure

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Date:   Sun, 3 Feb 2019 19:06:08 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     pawel@...iak.com, m.szyprowski@...sung.com,
        kyungmin.park@...sung.com, mchehab@...nel.org
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        sabyasachi.linux@...il.com, brajeswar.linux@...il.com
Subject: [PATCH] media: videobuf2: Return error after allocation failure

There is no point to continuing assignemnt after memory allocation
failed, rather throw error immediately.

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
 drivers/media/common/videobuf2/videobuf2-vmalloc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
index 6dfbd5b..d3f71e2 100644
--- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c
+++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
@@ -46,16 +46,16 @@ static void *vb2_vmalloc_alloc(struct device *dev, unsigned long attrs,
 
 	buf->size = size;
 	buf->vaddr = vmalloc_user(buf->size);
-	buf->dma_dir = dma_dir;
-	buf->handler.refcount = &buf->refcount;
-	buf->handler.put = vb2_vmalloc_put;
-	buf->handler.arg = buf;
 
 	if (!buf->vaddr) {
 		pr_debug("vmalloc of size %ld failed\n", buf->size);
 		kfree(buf);
 		return ERR_PTR(-ENOMEM);
 	}
+	buf->dma_dir = dma_dir;
+	buf->handler.refcount = &buf->refcount;
+	buf->handler.put = vb2_vmalloc_put;
+	buf->handler.arg = buf;
 
 	refcount_set(&buf->refcount, 1);
 	return buf;
-- 
1.9.1