video: ssd1307fb: Improve a size determination in ssd1307fb_probe()

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.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Bastian Stender <bst@pengutronix.de>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index f599520374ddf575bba1236b81bec2c4c2d21c49..6439231f2db22ec13a227ed009598d58cadd737f 100644 (file)
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -628,7 +628,8 @@ static int ssd1307fb_probe(struct i2c_client *client,
                goto fb_alloc_error;
        }
 
-       ssd1307fb_defio = devm_kzalloc(&client->dev, sizeof(struct fb_deferred_io), GFP_KERNEL);
+       ssd1307fb_defio = devm_kzalloc(&client->dev, sizeof(*ssd1307fb_defio),
+                                      GFP_KERNEL);
        if (!ssd1307fb_defio) {
                dev_err(&client->dev, "Couldn't allocate deferred io.\n");
                ret = -ENOMEM;