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| author | Thomas Gleixner <tglx@linutronix.de> | 2009-10-10 15:14:03 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-10-14 17:36:51 +0200 |
| commit | a5ee6dc9ebe8fc2640ee3fbf2c340bd853e2fd36 (patch) | |
| tree | 879caae9d7eac70a944eef7e4a8194fca12588ca | |
| parent | d2d23559857e5f34762c61487f8ffb2fa4d7442d (diff) | |
| download | blackbird-op-linux-a5ee6dc9ebe8fc2640ee3fbf2c340bd853e2fd36.tar.gz blackbird-op-linux-a5ee6dc9ebe8fc2640ee3fbf2c340bd853e2fd36.zip | |
rtc: Remove BKL from efirtc
BKL locking came to efirtc via the big BKL push down, but the access
to the efi functions is protected by efi_rtc_lock already.
Remove it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <20091010153350.046644063@linutronix.de>
| -rw-r--r-- | drivers/char/efirtc.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c index 34d15d548236..26a47dc88f61 100644 --- a/drivers/char/efirtc.c +++ b/drivers/char/efirtc.c @@ -27,8 +27,6 @@ * - Add module support */ - -#include <linux/smp_lock.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/miscdevice.h> @@ -174,13 +172,12 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd, return -EINVAL; case RTC_RD_TIME: - lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); status = efi.get_time(&eft, &cap); spin_unlock_irqrestore(&efi_rtc_lock,flags); - unlock_kernel(); + if (status != EFI_SUCCESS) { /* should never happen */ printk(KERN_ERR "efitime: can't read time\n"); @@ -202,13 +199,11 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd, convert_to_efi_time(&wtime, &eft); - lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); status = efi.set_time(&eft); spin_unlock_irqrestore(&efi_rtc_lock,flags); - unlock_kernel(); return status == EFI_SUCCESS ? 0 : -EINVAL; @@ -224,7 +219,6 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd, convert_to_efi_time(&wtime, &eft); - lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); /* * XXX Fixme: @@ -235,19 +229,16 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd, status = efi.set_wakeup_time((efi_bool_t)enabled, &eft); spin_unlock_irqrestore(&efi_rtc_lock,flags); - unlock_kernel(); return status == EFI_SUCCESS ? 0 : -EINVAL; case RTC_WKALM_RD: - lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); status = efi.get_wakeup_time((efi_bool_t *)&enabled, (efi_bool_t *)&pending, &eft); spin_unlock_irqrestore(&efi_rtc_lock,flags); - unlock_kernel(); if (status != EFI_SUCCESS) return -EINVAL; @@ -277,7 +268,6 @@ static int efi_rtc_open(struct inode *inode, struct file *file) * We do accept multiple open files at the same time as we * synchronize on the per call operation. */ - cycle_kernel_lock(); return 0; } |
