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mtd: remove retlen zeroing duplication

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The MTD API function now zero the 'retlen' parameter before calling
the driver's method — do not do this again in drivers. This removes
duplicated '*retlen = 0' assignent from the following methods:

    'mtd_point()'
    'mtd_read()'
    'mtd_write()'
    'mtd_writev()'
    'mtd_panic_write()'

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Artem Bityutskiy
2012-02-06 12:39:07 +02:00
committed by David Woodhouse
parent 664addc248
commit 834247ec7e
18 changed files with 1 additions and 73 deletions
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5
drivers/mtd/chips/cfi_cmdset_0001.c
View File

@@ -1334,7 +1334,6 @@ static int cfi_intelext_point(struct mtd_info *mtd, loff_t from, size_t len,
ofs = from - (chipnum << cfi->chipshift);
*virt = map->virt + cfi->chips[chipnum].start + ofs;
*retlen = 0;
if (phys)
*phys = map->phys + cfi->chips[chipnum].start + ofs;
@@ -1460,8 +1459,6 @@ static int cfi_intelext_read (struct mtd_info *mtd, loff_t from, size_t len, siz
chipnum = (from >> cfi->chipshift);
ofs = from - (chipnum << cfi->chipshift);
*retlen = 0;
while (len) {
unsigned long thislen;
@@ -1569,7 +1566,6 @@ static int cfi_intelext_write_words (struct mtd_info *mtd, loff_t to , size_t le
int chipnum;
unsigned long ofs;
*retlen = 0;
if (!len)
return 0;
@@ -1817,7 +1813,6 @@ static int cfi_intelext_writev (struct mtd_info *mtd, const struct kvec *vecs,
for (i = 0; i < count; i++)
len += vecs[i].iov_len;
*retlen = 0;
if (!len)
return 0;

12
drivers/mtd/chips/cfi_cmdset_0002.c
View File

@@ -1017,13 +1017,9 @@ static int cfi_amdstd_read (struct mtd_info *mtd, loff_t from, size_t len, size_
int ret = 0;
/* ofs: offset within the first chip that the first read should start */
chipnum = (from >> cfi->chipshift);
ofs = from - (chipnum << cfi->chipshift);
*retlen = 0;
while (len) {
unsigned long thislen;
@@ -1101,16 +1097,11 @@ static int cfi_amdstd_secsi_read (struct mtd_info *mtd, loff_t from, size_t len,
int chipnum;
int ret = 0;
/* ofs: offset within the first chip that the first read should start */
/* 8 secsi bytes per chip */
chipnum=from>>3;
ofs=from & 7;
*retlen = 0;
while (len) {
unsigned long thislen;
@@ -1255,7 +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);
*retlen = 0;
if (!len)
return 0;
@@ -1497,7 +1487,6 @@ static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
int chipnum;
unsigned long ofs;
*retlen = 0;
if (!len)
return 0;
@@ -1708,7 +1697,6 @@ static int cfi_amdstd_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
int ret = 0;
int chipnum;
*retlen = 0;
if (!len)
return 0;

3
drivers/mtd/chips/cfi_cmdset_0020.c
View File

@@ -394,8 +394,6 @@ static int cfi_staa_read (struct mtd_info *mtd, loff_t from, size_t len, size_t
chipnum = (from >> cfi->chipshift);
ofs = from - (chipnum << cfi->chipshift);
*retlen = 0;
while (len) {
unsigned long thislen;
@@ -617,7 +615,6 @@ static int cfi_staa_write_buffers (struct mtd_info *mtd, loff_t to,
int chipnum;
unsigned long ofs;
*retlen = 0;
if (!len)
return 0;

2
drivers/mtd/chips/map_absent.c
View File

@@ -70,13 +70,11 @@ static struct mtd_info *map_absent_probe(struct map_info *map)
static int map_absent_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
{
*retlen = 0;
return -ENODEV;
}
static int map_absent_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
{
*retlen = 0;
return -ENODEV;
}