[PATCH] mtdoops: fix a bit of spin lock usage

[Adrian Hunter <adrian.hunter@nokia.com>]

- do not leave spin lock locked
- initialise spin lock

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
---
 drivers/mtd/mtdoops.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 0a0dad6..3f63fad 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -358,8 +358,10 @@ mtdoops_console_write(struct console *co, const char *s, unsigned int count)
 	spin_lock_irqsave(&cxt->writecount_lock, flags);
 
 	/* Check ready status didn't change whilst waiting for the lock */
-	if (!cxt->ready)
+	if (!cxt->ready) {
+		spin_unlock_irqrestore(&cxt->writecount_lock, flags);
 		return;
+	}
 
 	if (cxt->writecount == 0) {
 		u32 *stamp = cxt->oops_buf;
@@ -417,6 +419,7 @@ static int __init mtdoops_console_init(void)
 
 	cxt->mtd_index = -1;
 	cxt->oops_buf = vmalloc(OOPS_PAGE_SIZE);
+	spin_lock_init(&cxt->writecount_lock);
 
 	if (!cxt->oops_buf) {
 		printk(KERN_ERR "Failed to allocate mtdoops buffer workspace\n");
-- 
1.5.6.3