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| author | Arnd Bergmann <arnd@arndb.de> | 2008-05-20 21:15:37 +0400 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-06-21 00:05:54 +0400 |
| commit | 9a8bd2f76cb78fd730337f1b3b9cbef101ce2dad (patch) | |
| tree | 8ee89ca2c10098d371a6718f0bdb10467f1474d4 /arch/blackfin/mach-bf561/coreb.c | |
| parent | 52e7c5e08201e20ddbe93cb1977869c38072bc2f (diff) | |
| download | linux-9a8bd2f76cb78fd730337f1b3b9cbef101ce2dad.tar.xz | |
bf561-coreb: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/blackfin/mach-bf561/coreb.c')
| -rw-r--r-- | arch/blackfin/mach-bf561/coreb.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf561/coreb.c b/arch/blackfin/mach-bf561/coreb.c index 1b44e9e6dc3b..852647801a01 100644 --- a/arch/blackfin/mach-bf561/coreb.c +++ b/arch/blackfin/mach-bf561/coreb.c @@ -32,6 +32,7 @@ #include <linux/device.h> #include <linux/ioport.h> #include <linux/module.h> +#include <linux/smp_lock.h> #include <linux/uaccess.h> #include <linux/fs.h> #include <asm/dma.h> @@ -196,6 +197,7 @@ static loff_t coreb_lseek(struct file *file, loff_t offset, int origin) static int coreb_open(struct inode *inode, struct file *file) { + lock_kernel(); spin_lock_irq(&coreb_lock); if (coreb_status & COREB_IS_OPEN) @@ -204,10 +206,12 @@ static int coreb_open(struct inode *inode, struct file *file) coreb_status |= COREB_IS_OPEN; spin_unlock_irq(&coreb_lock); + unlock_kernel(); return 0; out_busy: spin_unlock_irq(&coreb_lock); + unlock_kernel(); return -EBUSY; } |