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authorDavid Woodhouse <dwmw2@infradead.org>2007-10-06 15:01:59 -0400
committerDavid Woodhouse <dwmw2@infradead.org>2007-10-06 15:01:59 -0400
commit49defc015ff58fda46a3afa3462dfdfa69bc8401 (patch)
tree992d7b968c1055a262b02c56dadb0ca1c65ab917
parent1fcf8ce51e7acc4b66904c4e159690c9467606b5 (diff)
[MTD] [NAND] Avoid deadlock in erase callback; release chip lock first.
When the erase callback performs some other action on the flash, it's highly likely to deadlock unless we actually release the chip lock before calling it. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
-rw-r--r--drivers/mtd/nand/nand_base.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index d5691212058..b4e0e772389 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2069,13 +2069,14 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
erase_exit:
ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
- /* Do call back function */
- if (!ret)
- mtd_erase_callback(instr);
/* Deselect and wake up anyone waiting on the device */
nand_release_device(mtd);
+ /* Do call back function */
+ if (!ret)
+ mtd_erase_callback(instr);
+
/*
* If BBT requires refresh and erase was successful, rewrite any
* selected bad block tables