[6/8,media] videobuf-dma-sg: Improve a size determination in __videobuf_mmap_mapper()

Commit Message

SF Markus Elfring Dec. 26, 2016, 8:51 p.m. UTC

From: Markus Elfring <[e-mail]>
Date: Mon, 26 Dec 2016 20:56:41 +0100

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <[e-mail]>
---
 drivers/media/v4l2-core/videobuf-dma-sg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c
index d09ddf2e56fe..070ba10bbdbc 100644
--- a/drivers/media/v4l2-core/videobuf-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf-dma-sg.c
@@ -618,7 +618,7 @@  static int __videobuf_mmap_mapper(struct videobuf_queue *q,
 	last = first;
 
 	/* create mapping + update buffer list */
-	map = kmalloc(sizeof(struct videobuf_mapping), GFP_KERNEL);
+	map = kmalloc(sizeof(*map), GFP_KERNEL);
 	if (!map) {
 		retval = -ENOMEM;
 		goto done;