diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:17:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:17:05 -0700 |
| commit | 79c4581262e225a7c96d88b632b05ab3b5e9a52c (patch) | |
| tree | 8ef030c74ab7e0d0df27cf86195f915efd2832f7 /drivers/macintosh/smu.c | |
| parent | 59534f7298c5e28aaa64e6ed550e247f64ee72ae (diff) | |
| parent | 99ec28f183daa450faa7bdad6f932364ae325648 (diff) | |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (92 commits)
powerpc: Remove unused 'protect4gb' boot parameter
powerpc: Build-in e1000e for pseries & ppc64_defconfig
powerpc/pseries: Make request_ras_irqs() available to other pseries code
powerpc/numa: Use ibm,architecture-vec-5 to detect form 1 affinity
powerpc/numa: Set a smaller value for RECLAIM_DISTANCE to enable zone reclaim
powerpc: Use smt_snooze_delay=-1 to always busy loop
powerpc: Remove check of ibm,smt-snooze-delay OF property
powerpc/kdump: Fix race in kdump shutdown
powerpc/kexec: Fix race in kexec shutdown
powerpc/kexec: Speedup kexec hash PTE tear down
powerpc/pseries: Add hcall to read 4 ptes at a time in real mode
powerpc: Use more accurate limit for first segment memory allocations
powerpc/kdump: Use chip->shutdown to disable IRQs
powerpc/kdump: CPUs assume the context of the oopsing CPU
powerpc/crashdump: Do not fail on NULL pointer dereferencing
powerpc/eeh: Fix oops when probing in early boot
powerpc/pci: Check devices status property when scanning OF tree
powerpc/vio: Switch VIO Bus PM to use generic helpers
powerpc: Avoid bad relocations in iSeries code
powerpc: Use common cpu_die (fixes SMP+SUSPEND build)
...
Diffstat (limited to 'drivers/macintosh/smu.c')
| -rw-r--r-- | drivers/macintosh/smu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index 888448cf7f1..c9da5c4c167 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -1183,8 +1183,10 @@ static ssize_t smu_read_command(struct file *file, struct smu_private *pp, return -EOVERFLOW; spin_lock_irqsave(&pp->lock, flags); if (pp->cmd.status == 1) { - if (file->f_flags & O_NONBLOCK) + if (file->f_flags & O_NONBLOCK) { + spin_unlock_irqrestore(&pp->lock, flags); return -EAGAIN; + } add_wait_queue(&pp->wait, &wait); for (;;) { set_current_state(TASK_INTERRUPTIBLE); |