diff options
| author | vdumpa <vdumpa@nvidia.com> | 2010-06-14 12:08:44 -0700 |
|---|---|---|
| committer | Gary King <gking@nvidia.com> | 2010-06-15 08:47:45 -0700 |
| commit | 6ec469a60822d9dce1a190a56d19eaece8e7958b (patch) | |
| tree | 5bb39b67e34de97615a91a96d419496435982dca /drivers/mtd/devices | |
| parent | 0f0019e053309159030e64c483e26001f8f335fb (diff) | |
tegra mtd: Fixed read api to return correct length.
Fixed tegra_nand_read api to return correct number of
read bytes.
Change-Id: If08514052fa266b27d1a5d5d4139ae35e185f853
Reviewed-on: http://git-master/r/2593
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Tested-by: Krishna Reddy <vdumpa@nvidia.com>
Reviewed-by: Gary King <gking@nvidia.com>
Diffstat (limited to 'drivers/mtd/devices')
| -rw-r--r-- | drivers/mtd/devices/tegra_mtd_nand.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mtd/devices/tegra_mtd_nand.c b/drivers/mtd/devices/tegra_mtd_nand.c index 5af697695c89..846ea7cef637 100644 --- a/drivers/mtd/devices/tegra_mtd_nand.c +++ b/drivers/mtd/devices/tegra_mtd_nand.c @@ -293,6 +293,8 @@ static int tegra_nand_read(struct mtd_info *mtd, loff_t from, size_t len, memset(page_list, 0xff, sizeof(page_list)); mutex_lock(&info->lock); + if (retlen) + *retlen = 0; NvDdkNandResumeClocks(info->ddk); while (len) { @@ -329,11 +331,11 @@ static int tegra_nand_read(struct mtd_info *mtd, loff_t from, size_t len, from += count; len -= count; buf += count; - *retlen += count; + if (retlen) + *retlen += count; } NvDdkNandSuspendClocks(info->ddk); - *retlen = len; mutex_unlock(&info->lock); return (len) ? -EIO : 0; } |