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pxa3xx_nand: fix memory out of bound

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When fetch nand data with non-DMA mode, we should align info->data_size to
32bit, not 8bit.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
Haojian Zhuang 2009-09-11 19:33:58 +08:00 committed by Eric Miao
parent 70c7d2dd27
commit a88bdbb54a
1 changed files with 3 additions and 2 deletions
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5
drivers/mtd/nand/pxa3xx_nand.c
View file

@ -9,6 +9,7 @@
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
@ -489,7 +490,7 @@ static int handle_data_pio(struct pxa3xx_nand_info *info)
switch (info->state) {
case STATE_PIO_WRITING:
__raw_writesl(info->mmio_base + NDDB, info->data_buff,
info->data_size << 2);
DIV_ROUND_UP(info->data_size, 4));
enable_int(info, NDSR_CS0_BBD | NDSR_CS0_CMDD);
@ -501,7 +502,7 @@ static int handle_data_pio(struct pxa3xx_nand_info *info)
break;
case STATE_PIO_READING:
__raw_readsl(info->mmio_base + NDDB, info->data_buff,
info->data_size << 2);
DIV_ROUND_UP(info->data_size, 4));
break;
default:
printk(KERN_ERR "%s: invalid state %d\n", __func__,