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[PATCH] v9fs: fix vfs_inode dereference before NULL check

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__getname, which in turn will call kmem_cache_alloc, may return NULL.

Coverity bug #977

Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eugene Teo
2006-03-25 03:07:27 -08:00
committed by Linus Torvalds
parent 16cce6d27e
commit c0291a05f8
1 changed files with 2 additions and 0 deletions
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fs/9p/vfs_inode.c
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@@ -1244,6 +1244,8 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
return -EINVAL; return -EINVAL;
name = __getname(); name = __getname();
if (!name)
return -ENOMEM;
/* build extension */ /* build extension */
if (S_ISBLK(mode)) if (S_ISBLK(mode))
sprintf(name, "b %u %u", MAJOR(rdev), MINOR(rdev)); sprintf(name, "b %u %u", MAJOR(rdev), MINOR(rdev));