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| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-02-03 13:20:43 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 00:27:19 +0100 |
| commit | 5e4e6e3fdf48c1b012e2b6e80ed1d7e99d4fa6d1 (patch) | |
| tree | dade127061f6c466f4146152572cc17c05d44761 /drivers/mtd/devices | |
| parent | e2414f4c20bd4dc62186fbfd7bdec50bce6d2ead (diff) | |
| download | blackbird-obmc-linux-5e4e6e3fdf48c1b012e2b6e80ed1d7e99d4fa6d1.tar.gz blackbird-obmc-linux-5e4e6e3fdf48c1b012e2b6e80ed1d7e99d4fa6d1.zip | |
mtd: return error code from mtd_unpoint
The 'mtd_unpoint()' API function should be able to return an error code because
it may fail if you specify incorrect offset. This patch changes this MTD API
function and amends all the drivers correspondingly.
Also return '-EOPNOTSUPP' from 'mtd_unpoint()' when the '->unpoint()' method is
undefined. We do not really need this currently, but this just makes
sense to be consistent with 'mtd_point()'.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/devices')
| -rw-r--r-- | drivers/mtd/devices/mtdram.c | 3 | ||||
| -rw-r--r-- | drivers/mtd/devices/phram.c | 3 | ||||
| -rw-r--r-- | drivers/mtd/devices/pmc551.c | 3 | ||||
| -rw-r--r-- | drivers/mtd/devices/slram.c | 5 |
4 files changed, 9 insertions, 5 deletions
diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c index 91030cfb03b3..e1f017bf0777 100644 --- a/drivers/mtd/devices/mtdram.c +++ b/drivers/mtd/devices/mtdram.c @@ -60,8 +60,9 @@ static int ram_point(struct mtd_info *mtd, loff_t from, size_t len, return 0; } -static void ram_unpoint(struct mtd_info *mtd, loff_t from, size_t len) +static int ram_unpoint(struct mtd_info *mtd, loff_t from, size_t len) { + return 0; } /* diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index eff2b69864f5..38035551a7d2 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -70,8 +70,9 @@ static int phram_point(struct mtd_info *mtd, loff_t from, size_t len, return 0; } -static void phram_unpoint(struct mtd_info *mtd, loff_t from, size_t len) +static int phram_unpoint(struct mtd_info *mtd, loff_t from, size_t len) { + return 0; } static int phram_read(struct mtd_info *mtd, loff_t from, size_t len, diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 67d22e1cbc0e..933127ecebe5 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -206,11 +206,12 @@ static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len, return 0; } -static void pmc551_unpoint(struct mtd_info *mtd, loff_t from, size_t len) +static int pmc551_unpoint(struct mtd_info *mtd, loff_t from, size_t len) { #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_unpoint()\n"); #endif + return 0; } static int pmc551_read(struct mtd_info *mtd, loff_t from, size_t len, diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index cbeb19522bbc..9431ffc761c2 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -76,7 +76,7 @@ static slram_mtd_list_t *slram_mtdlist = NULL; static int slram_erase(struct mtd_info *, struct erase_info *); static int slram_point(struct mtd_info *, loff_t, size_t, size_t *, void **, resource_size_t *); -static void slram_unpoint(struct mtd_info *, loff_t, size_t); +static int slram_unpoint(struct mtd_info *, loff_t, size_t); static int slram_read(struct mtd_info *, loff_t, size_t, size_t *, u_char *); static int slram_write(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); @@ -119,8 +119,9 @@ static int slram_point(struct mtd_info *mtd, loff_t from, size_t len, return(0); } -static void slram_unpoint(struct mtd_info *mtd, loff_t from, size_t len) +static int slram_unpoint(struct mtd_info *mtd, loff_t from, size_t len) { + return 0; } static int slram_read(struct mtd_info *mtd, loff_t from, size_t len, |
