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authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-02-06 15:27:43 +0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-03-27 03:32:19 +0400
commitbcb1d238716d138c9e16347fc32b3c1ae006339e (patch)
treeccb7a9aea7b77481fa3474124218521e0c32de82 /drivers/mtd/nand/nand_base.c
parent0dd5235f51fb0eb0b8cef3fed35be39b8a06d7bd (diff)
downloadlinux-bcb1d238716d138c9e16347fc32b3c1ae006339e.tar.xz
mtd: move zero length verification to MTD API functions
In many places in drivers we verify for the zero length, but this is very inconsistent across drivers. This is obviously the right thing to do, though. This patch moves the check to the MTD API functions instead and removes a lot of duplication. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/nand/nand_base.c')
-rw-r--r--drivers/mtd/nand/nand_base.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index dd182c8591a9..5822e3a47ded 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -1614,9 +1614,6 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
struct mtd_oob_ops ops;
int ret;
- if (!len)
- return 0;
-
nand_get_device(chip, mtd, FL_READING);
ops.len = len;
ops.datbuf = buf;
@@ -2313,10 +2310,6 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
struct mtd_oob_ops ops;
int ret;
- /* Do not allow reads past end of device */
- if (!len)
- return 0;
-
/* Wait for the device to get ready */
panic_nand_wait(mtd, chip, 400);
@@ -2351,9 +2344,6 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
struct mtd_oob_ops ops;
int ret;
- if (!len)
- return 0;
-
nand_get_device(chip, mtd, FL_WRITING);
ops.len = len;
ops.datbuf = (uint8_t *)buf;