Use sizeof(*var) instead of sizeof(struct xxx) in matroxfb.

drivers/video/matrox/matroxfb_base.c

@@ -661,7 +661,7 @@ static int matroxfb_get_fix(struct fb_fix_screeninfo *fix, int con,
 	else
 		p = ACCESS_FBINFO(fbcon.disp);
 
-	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+	memset(fix, 0, sizeof(*fix));
 	strcpy(fix->id,"MATROX");
 
 	fix->smem_start = ACCESS_FBINFO(video.base) + ACCESS_FBINFO(curr.ydstorg.bytes);

drivers/video/matrox/matroxfb_maven.c

@@ -957,7 +957,7 @@ static int maven_detect_client(struct i2c_adapter* adapter, int address, unsigne
 					      I2C_FUNC_SMBUS_BYTE_DATA |
 					      I2C_FUNC_PROTOCOL_MANGLING))
 		goto ERROR0;
-	if (!(new_client = (struct i2c_client*)kmalloc(sizeof(struct i2c_client) + sizeof(struct maven_data),
+	if (!(new_client = (struct i2c_client*)kmalloc(sizeof(*new_client) + sizeof(*data),
 			GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto ERROR0;