From bcb1d238716d138c9e16347fc32b3c1ae006339e Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Mon, 6 Feb 2012 13:27:43 +0200 Subject: 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 Reviewed-by: Shmulik Ladkani Signed-off-by: David Woodhouse --- drivers/mtd/chips/cfi_cmdset_0001.c | 3 --- drivers/mtd/chips/cfi_cmdset_0002.c | 9 --------- drivers/mtd/chips/cfi_cmdset_0020.c | 3 --- 3 files changed, 15 deletions(-) (limited to 'drivers/mtd/chips') diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index dc66df6ab58a..2d9669047ed4 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -1566,9 +1566,6 @@ static int cfi_intelext_write_words (struct mtd_info *mtd, loff_t to , size_t le int chipnum; unsigned long ofs; - if (!len) - return 0; - chipnum = to >> cfi->chipshift; ofs = to - (chipnum << cfi->chipshift); diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index a89d899efad4..c1d4624ce6e7 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -1246,9 +1246,6 @@ static int cfi_amdstd_write_words(struct mtd_info *mtd, loff_t to, size_t len, unsigned long ofs, chipstart; DECLARE_WAITQUEUE(wait, current); - if (!len) - return 0; - chipnum = to >> cfi->chipshift; ofs = to - (chipnum << cfi->chipshift); chipstart = cfi->chips[chipnum].start; @@ -1487,9 +1484,6 @@ static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len, int chipnum; unsigned long ofs; - if (!len) - return 0; - chipnum = to >> cfi->chipshift; ofs = to - (chipnum << cfi->chipshift); @@ -1697,9 +1691,6 @@ static int cfi_amdstd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, int ret = 0; int chipnum; - if (!len) - return 0; - chipnum = to >> cfi->chipshift; ofs = to - (chipnum << cfi->chipshift); chipstart = cfi->chips[chipnum].start; diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c index d690b7d6952b..096993f9711e 100644 --- a/drivers/mtd/chips/cfi_cmdset_0020.c +++ b/drivers/mtd/chips/cfi_cmdset_0020.c @@ -615,9 +615,6 @@ static int cfi_staa_write_buffers (struct mtd_info *mtd, loff_t to, int chipnum; unsigned long ofs; - if (!len) - return 0; - chipnum = to >> cfi->chipshift; ofs = to - (chipnum << cfi->chipshift); -- cgit v1.2.3