iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
- do not leave spin lock locked
- initialise spin lock

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Adrian Hunter 2009-03-04 09:53:40 +02:00 committed by David Woodhouse
parent e2a0f25b4f
commit 48ec00ac89
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/mtd/mtdoops.c
View File

@ -361,8 +361,10 @@ 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;
@ -420,6 +422,7 @@ 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");