mtdoops: fix a bit of spin lock usage

- do not leave spin lock locked
- initialise spin lock

---
drivers/mtd/mtdoops.c | 5 ++++-

1 files changed, 4 insertions(+), 1 deletions(-)

index 0a0dad6..3f63fad 100644
@@ -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

David, would you please push this patch?

Best regards,
Artem Bityutskiy (Битюцкий Артём)