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| author | Adrian Hunter <adrian.hunter@nokia.com> | 2009-03-04 09:53:40 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-03-20 18:39:25 +0000 |
| commit | 48ec00ac895074f8a47bda8f3925ccaa46abb7a8 (patch) | |
| tree | ed31424afc0b44d209185ff24e0852d9e321f86d /drivers/mtd/mtdoops.c | |
| parent | e2a0f25b4f520adbd82c0caafcde0470ed11053d (diff) | |
| download | linux-stable-48ec00ac895074f8a47bda8f3925ccaa46abb7a8.tar.gz linux-stable-48ec00ac895074f8a47bda8f3925ccaa46abb7a8.tar.bz2 linux-stable-48ec00ac895074f8a47bda8f3925ccaa46abb7a8.zip | |
[MTD] mtdoops: fix a bit of spin lock usage
- 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>
Diffstat (limited to 'drivers/mtd/mtdoops.c')
| -rw-r--r-- | 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 fdf504fb319a..1060337c06df 100644 --- a/drivers/mtd/mtdoops.c +++ b/drivers/mtd/mtdoops.c @@ -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"); |