flash: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

flash: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
78abb6ac · Arnd Bergmann · Jonathan Corbet · 1d17bf0c · 78abb6ac
Commit 78abb6ac authored May 20, 2008 by Arnd Bergmann Committed by Jonathan Corbet Jun 20, 2008
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drivers/sbus/char/flash.c drivers/sbus/char/flash.c +5 -1

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--- a/drivers/sbus/char/flash.c
+++ b/drivers/sbus/char/flash.c
@@ -127,9 +127,13 @@ flash_read(struct file * file, char __user * buf,
 static int
 flash_open(struct inode *inode, struct file *file)
 {
-	if (test_and_set_bit(0, (void *)&flash.busy) != 0)
+	lock_kernel();
+	if (test_and_set_bit(0, (void *)&flash.busy) != 0) {
+		unlock_kernel();
 		return -EBUSY;
+	}
+	unlock_kernel();
 	return 0;
 }