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| author | Ben Dooks <ben-linux@fluff.org> | 2008-07-15 21:19:14 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2008-07-15 21:19:14 +0200 |
| commit | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (patch) | |
| tree | 313b3b9ca04727f3704464e01d8dd97da1dd534b /drivers/char/mbcs.c | |
| parent | [ARM] S3C24XX: Fix SERIAL_SAMSUNG entry (diff) | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pen... (diff) | |
| download | linux-0c17e4ceedd35c78b1c7413dbd16279a350be6bc.tar.xz linux-0c17e4ceedd35c78b1c7413dbd16279a350be6bc.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-rmk
Diffstat (limited to 'drivers/char/mbcs.c')
| -rw-r--r-- | drivers/char/mbcs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c index f4716ad7348a..acd8e9ed474a 100644 --- a/drivers/char/mbcs.c +++ b/drivers/char/mbcs.c @@ -24,6 +24,7 @@ #include <linux/mm.h> #include <linux/uio.h> #include <linux/mutex.h> +#include <linux/smp_lock.h> #include <asm/io.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -382,15 +383,19 @@ static int mbcs_open(struct inode *ip, struct file *fp) struct mbcs_soft *soft; int minor; + lock_kernel(); minor = iminor(ip); + /* Nothing protects access to this list... */ list_for_each_entry(soft, &soft_list, list) { if (soft->nasid == minor) { fp->private_data = soft->cxdev; + unlock_kernel(); return 0; } } + unlock_kernel(); return -ENODEV; } |