Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6

[linux-drm-fsl-dcu.git] / fs / sysfs / inode.c

diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 689f7bcfaf3043b5585853f33589d59a77398008..4c29ac41ac3ec050f9f680118df5ab5aadf5a12a 100644 (file)
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -54,11 +54,10 @@ int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
 
        if (!sd_iattr) {
                /* setting attributes for the first time, allocate now */
-               sd_iattr = kmalloc(sizeof(struct iattr), GFP_KERNEL);
+               sd_iattr = kzalloc(sizeof(struct iattr), GFP_KERNEL);
                if (!sd_iattr)
                        return -ENOMEM;
                /* assign default attributes */
-               memset(sd_iattr, 0, sizeof(struct iattr));
                sd_iattr->ia_mode = sd->s_mode;
                sd_iattr->ia_uid = 0;
                sd_iattr->ia_gid = 0;
@@ -227,12 +226,16 @@ void sysfs_drop_dentry(struct sysfs_dirent * sd, struct dentry * parent)
 void sysfs_hash_and_remove(struct dentry * dir, const char * name)
 {
        struct sysfs_dirent * sd;
-       struct sysfs_dirent * parent_sd = dir->d_fsdata;
+       struct sysfs_dirent * parent_sd;
+
+       if (!dir)
+               return;
 
        if (dir->d_inode == NULL)
                /* no inode means this hasn't been made visible yet */
                return;
 
+       parent_sd = dir->d_fsdata;
        mutex_lock(&dir->d_inode->i_mutex);
        list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {
                if (!sd->s_element)