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authorAlexander Stein <alexander.stein@systec-electronic.com>2012-01-10 13:26:58 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-03-27 00:11:11 +0100
commit70d5098a4b1551864dd7df43f67b7f606a1a6438 (patch)
tree288f6f9cdb1866ea9648c6590448254c40af2c81 /drivers/mtd/mtd_blkdevs.c
parent2ff5e1532dd37e1bd8ac72da3f7f0e2b310102fb (diff)
mtd: mtdblock: call mtd_sync() only if opened for write
Because it is useless to call it if the device is opened in R/O mode, and also harmful: on CFI NOR flash it may block for long time waiting for erase operations to complete is another partition with a R/W file-system on this chip. Artem Bityutskiy: write commit message, amend the patch to match the latest tree (we use mtd_sync(), not mtd->sync() nowadays). Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/mtd_blkdevs.c')
-rw-r--r--drivers/mtd/mtd_blkdevs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 424ca5f93c6c..f1f06715d4e0 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -233,6 +233,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
ret = __get_mtd_device(dev->mtd);
if (ret)
goto error_release;
+ dev->file_mode = mode;
unlock:
dev->open++;