From caf0e8e028516253afce6e40c52f0c193a221f8a Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 10 Dec 2009 14:23:57 +0100
Subject: mtd: cfi_cmdset_0002, fix lock imbalance
Stanse found a double unlock in get_chip. get_chip is called with
chip->mutex held and caller is responsible for unlocking it too.
Do not unlock the lock in get_chip on a fail path. This would mean
a double unlock.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
drivers/mtd/chips/cfi_cmdset_0002.c | 1 -
1 file changed, 1 deletion(-)
(limited to 'drivers/mtd')
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 1d49e18adbf6..f3600e8d5382 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -569,7 +569,6 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
if (time_after(jiffies, timeo)) {
printk(KERN_ERR "Waiting for chip to be ready timed out.\n");
- spin_unlock(chip->mutex);
return -EIO;
}
spin_unlock(chip->mutex);
--
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