diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2013-01-29 10:48:30 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-01-29 10:48:30 +0100 |
| commit | 617677295b53a40d0e54aac4cbbc216ffbc755dd (patch) | |
| tree | 51b9e87213243ed5efff252c8e8d8fec4eebc588 /drivers/block/aoe/aoechr.c | |
| parent | 5c8d1b68e01a144813e38795fe6dbe7ebb506131 (diff) | |
| parent | 6abb7c25775b7fb2225ad0508236d63ca710e65f (diff) | |
Merge branch 'master' into for-next
Conflicts:
drivers/devfreq/exynos4_bus.c
Sync with Linus' tree to be able to apply patches that are
against newer code (mvneta).
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 ed57a890c64..42e67ad6bd2 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -39,6 +39,11 @@ struct ErrMsg { }; static DEFINE_MUTEX(aoechr_mutex); + +/* A ring buffer of error messages, to be read through + * "/dev/etherd/err". When no messages are present, + * readers will block waiting for messages to appear. + */ static struct ErrMsg emsgs[NMSG]; static int emsgs_head_idx, emsgs_tail_idx; static struct completion emsgs_comp; @@ -282,7 +287,7 @@ aoechr_init(void) int n, i; n = register_chrdev(AOE_MAJOR, "aoechr", &aoe_fops); - if (n < 0) { + if (n < 0) { printk(KERN_ERR "aoe: can't register char device\n"); return n; } |