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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/ssfdc.c
parenta863862257b7dd08d855bafcb0aedd9ad848ed91 (diff)
downloadlinux-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/ssfdc.c')
-rw-r--r--drivers/mtd/ssfdc.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index 3f67e00d98e0..81c4ecdc11f5 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -375,7 +375,6 @@ static void ssfdcr_remove_dev(struct mtd_blktrans_dev *dev)
 
 	del_mtd_blktrans_dev(dev);
 	kfree(ssfdc->logic_block_map);
-	kfree(ssfdc);
 }
 
 static int ssfdcr_readsect(struct mtd_blktrans_dev *dev,