From: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Date: Tue, 28 Nov 2006 23:11:52 +0000 (+0000)
Subject: [PATCH] Fix Intel/Sharp command set erase suspend bug
X-Git-Tag: v2.6.19~13
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=967bf623e9f5eecfb056b1ba7e0efd74a21c9c3a;p=linux-2.6-omap-h63xx.git

[PATCH] Fix Intel/Sharp command set erase suspend bug

When we sleep and wait for a suspended operation to be resumed, go
back and check until it's ready -- don't just continue after the first
time we're woken. This can cause file system corruption.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 7ea49a0d5ec..296159ec518 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -1087,7 +1087,7 @@ static int inval_cache_and_wait_for_operation(
 		}
 		spin_lock(chip->mutex);
 
-		if (chip->state != chip_state) {
+		while (chip->state != chip_state) {
 			/* Someone's suspended the operation: sleep */
 			DECLARE_WAITQUEUE(wait, current);
 			set_current_state(TASK_UNINTERRUPTIBLE);