[PATCH] v9fs: handle kthread_create failure, minor bugfixes

- remove unnecessary -ENOMEM assignments
- return correct value when buf_check_size for second time in a buffer
- handle failures when create_workqueue and kthread_create are called
- use kzalloc instead of kmalloc/memset 0
- v9fs_str_copy and v9fs_str_compare were buggy, were used only in one
  place, correct the logic and move it to the place it is used.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 742bcd0dc4a7..d933ef1fbd8a 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -768,6 +768,7 @@ void
 v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode,
         struct super_block *sb)
 {
+        int n;
         char ext[32];
         struct v9fs_session_info *v9ses = sb->s_fs_info;
 
@@ -791,7 +792,11 @@ v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode,
                 int major = -1;
                 int minor = -1;
 
-                v9fs_str_copy(ext, sizeof(ext), &stat->extension);
+                n = stat->extension.len;
+                if (n > sizeof(ext)-1)
+                        n = sizeof(ext)-1;
+                memmove(ext, stat->extension.str, n);
+                ext[n] = 0;
                 sscanf(ext, "%c %u %u", &type, &major, &minor);
                 switch (type) {
                 case 'c':