[PATCH] v9fs: fix vfs_inode dereference before NULL check
__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>
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@ -1244,6 +1244,8 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
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return -EINVAL;
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name = __getname();
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if (!name)
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return -ENOMEM;
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/* build extension */
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if (S_ISBLK(mode))
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sprintf(name, "b %u %u", MAJOR(rdev), MINOR(rdev));
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