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authorMaxim Levitsky <maximlevitsky@gmail.com>2010-02-22 20:39:30 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-02-26 17:05:26 +0000
commit048d87199566663e4edc4880df3703c04bcf41d9 (patch)
treeda875d4f7802d6ca8a7db9f2cdba57b74d6c3672 /drivers/mtd/mtdblock.c
parenta863862257b7dd08d855bafcb0aedd9ad848ed91 (diff)
downloadlinaro-lsk-048d87199566663e4edc4880df3703c04bcf41d9.tar.gz
mtd: blktrans: Hotplug fixes
* Add locking where it was missing. * Don't do a get_mtd_device in blktrans_open because it would lead to a deadlock; instead do that in add_mtd_blktrans_dev. * Only free the mtd_blktrans_dev structure when the last user exits. * Flush request queue on device removal. * Track users, and call tr->release in del_mtd_blktrans_dev Due to that ->open and release aren't called more that once. Now it is safe to call del_mtd_blktrans_dev while the device is still in use. Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/mtdblock.c')
-rw-r--r--drivers/mtd/mtdblock.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 69f6bf2e0a8..8e5da1e4607 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -354,9 +354,7 @@ static void mtdblock_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
static void mtdblock_remove_dev(struct mtd_blktrans_dev *dev)
{
struct mtdblk_dev *mtdblk = container_of(dev, struct mtdblk_dev, mbd);
-
del_mtd_blktrans_dev(dev);
- kfree(mtdblk);
}
static struct mtd_blktrans_ops mtdblock_tr = {