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| author | Arve Hjønnevåg <arve@android.com> | 2011-10-31 20:17:42 -0700 |
|---|---|---|
| committer | Arve Hjønnevåg <arve@android.com> | 2011-11-17 17:54:35 -0800 |
| commit | 83e688cd9e94256fbe22a140d9e791f37024445b (patch) | |
| tree | 7278f76aee56e5c3724f630291c21ac324d1dfb5 /drivers/mtd/onenand | |
| parent | 5126df5d44d9415a295e126578a9c7319a7553c3 (diff) | |
| download | kernel_samsung_aries-83e688cd9e94256fbe22a140d9e791f37024445b.zip kernel_samsung_aries-83e688cd9e94256fbe22a140d9e791f37024445b.tar.gz kernel_samsung_aries-83e688cd9e94256fbe22a140d9e791f37024445b.tar.bz2 | |
mtd: onenand: Invalidate bufferram on resume
When first page read after resume was the same as the last page
used before suspend, a new read command was never issued. Bad
data would then be returned if the chip had been powered down.
Add an invalidate bufferram call to the resume function to force
a new read command.
Change-Id: I0b20dc21505f8f8c83574a5f35ccf85484a6b9f2
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Diffstat (limited to 'drivers/mtd/onenand')
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index c274911..0b964ee 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -3925,11 +3925,13 @@ static void onenand_resume(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; - if (this->state == FL_PM_SUSPENDED) + if (this->state == FL_PM_SUSPENDED) { + onenand_invalidate_bufferram(mtd, 0, -1); onenand_release_device(mtd); - else + } else { printk(KERN_ERR "%s: resume() called for the chip which is not " "in suspended state\n", __func__); + } } /** |