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| author | Jonathan Corbet <corbet@lwn.net> | 2008-05-15 20:03:09 +0400 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-06-21 00:03:43 +0400 |
| commit | 579174a55f491edeaccb8f5d3dc7ad69a17f5423 (patch) | |
| tree | 70c5392de4eba1999f999a258c53778f52454280 /drivers/block/aoe/aoechr.c | |
| parent | 764a4a8e54cdd6efc5928f876aa9e35778f22377 (diff) | |
| download | linux-579174a55f491edeaccb8f5d3dc7ad69a17f5423.tar.xz | |
AoE: cdev lock_kernel() pushdown
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/block/aoe/aoechr.c')
| -rw-r--r-- | drivers/block/aoe/aoechr.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index e8e60e7a2e70..d1de68a31920 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -7,6 +7,7 @@ #include <linux/hdreg.h> #include <linux/blkdev.h> #include <linux/delay.h> +#include <linux/smp_lock.h> #include "aoe.h" enum { @@ -174,12 +175,16 @@ aoechr_open(struct inode *inode, struct file *filp) { int n, i; + lock_kernel(); n = iminor(inode); filp->private_data = (void *) (unsigned long) n; for (i = 0; i < ARRAY_SIZE(chardevs); ++i) - if (chardevs[i].minor == n) + if (chardevs[i].minor == n) { + unlock_kernel(); return 0; + } + unlock_kernel(); return -EINVAL; } |