bvme6000-rtc: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
parent
556889a4ae
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122bc5eaf8
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@ -10,6 +10,7 @@
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#include <linux/errno.h>
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#include <linux/errno.h>
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#include <linux/miscdevice.h>
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#include <linux/miscdevice.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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#include <linux/smp_lock.h>
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#include <linux/ioport.h>
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#include <linux/ioport.h>
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#include <linux/capability.h>
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#include <linux/capability.h>
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#include <linux/fcntl.h>
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#include <linux/fcntl.h>
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@ -140,10 +141,14 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
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static int rtc_open(struct inode *inode, struct file *file)
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static int rtc_open(struct inode *inode, struct file *file)
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{
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{
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if(rtc_status)
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lock_kernel();
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if(rtc_status) {
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unlock_kernel();
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return -EBUSY;
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return -EBUSY;
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}
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rtc_status = 1;
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rtc_status = 1;
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unlock_kernel();
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return 0;
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return 0;
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}
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}
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