diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2010-01-06 15:49:08 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-01-06 15:49:08 +0900 |
| commit | fa94ddea2b29fdda7640672c8a933dbd901f0278 (patch) | |
| tree | 4e9204f1438f5ed44bff31e2abee598ad775321d /drivers/base/devtmpfs.c | |
| parent | 6fbfe8d7cd7e71ceb281c5a1b9de6e5e0dfbf1c8 (diff) | |
| parent | 56d45b62ce622a003da972428fdbba2b42102efb (diff) | |
Merge branch 'master' into sh/hw-breakpoints
Diffstat (limited to 'drivers/base/devtmpfs.c')
| -rw-r--r-- | drivers/base/devtmpfs.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index 50375bb8e51..090dd485130 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -32,7 +32,7 @@ static int dev_mount = 1; static int dev_mount; #endif -static rwlock_t dirlock; +static DEFINE_MUTEX(dirlock); static int __init mount_param(char *str) { @@ -93,7 +93,7 @@ static int create_path(const char *nodepath) { int err; - read_lock(&dirlock); + mutex_lock(&dirlock); err = dev_mkdir(nodepath, 0755); if (err == -ENOENT) { char *path; @@ -101,8 +101,10 @@ static int create_path(const char *nodepath) /* parent directories do not exist, create them */ path = kstrdup(nodepath, GFP_KERNEL); - if (!path) - return -ENOMEM; + if (!path) { + err = -ENOMEM; + goto out; + } s = path; for (;;) { s = strchr(s, '/'); @@ -117,7 +119,8 @@ static int create_path(const char *nodepath) } kfree(path); } - read_unlock(&dirlock); +out: + mutex_unlock(&dirlock); return err; } @@ -229,7 +232,7 @@ static int delete_path(const char *nodepath) if (!path) return -ENOMEM; - write_lock(&dirlock); + mutex_lock(&dirlock); for (;;) { char *base; @@ -241,7 +244,7 @@ static int delete_path(const char *nodepath) if (err) break; } - write_unlock(&dirlock); + mutex_unlock(&dirlock); kfree(path); return err; @@ -352,8 +355,6 @@ int __init devtmpfs_init(void) int err; struct vfsmount *mnt; - rwlock_init(&dirlock); - err = register_filesystem(&dev_fs_type); if (err) { printk(KERN_ERR "devtmpfs: unable to register devtmpfs " |