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cifs: fix build_unc_path_to_root to account for a prefixpath

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Regression introduced by commit f87d39d951.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2011-07-06 08:10:36 -04:00 committed by Steve French
parent 677d8537d8
commit b2a0fa1520
1 changed files with 15 additions and 6 deletions
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21
fs/cifs/connect.c
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@ -2855,19 +2855,28 @@ cifs_cleanup_volume_info(struct smb_vol **pvolume_info)
/* build_path_to_root returns full path to root when
* we do not have an exiting connection (tcon) */
static char *
build_unc_path_to_root(const struct smb_vol *volume_info,
build_unc_path_to_root(const struct smb_vol *vol,
const struct cifs_sb_info *cifs_sb)
{
char *full_path;
char *full_path, *pos;
unsigned int pplen = vol->prepath ? strlen(vol->prepath) : 0;
unsigned int unc_len = strnlen(vol->UNC, MAX_TREE_SIZE + 1);
int unc_len = strnlen(volume_info->UNC, MAX_TREE_SIZE + 1);
full_path = kmalloc(unc_len + 1, GFP_KERNEL);
full_path = kmalloc(unc_len + pplen + 1, GFP_KERNEL);
if (full_path == NULL)
return ERR_PTR(-ENOMEM);
strncpy(full_path, volume_info->UNC, unc_len);
full_path[unc_len] = 0; /* add trailing null */
strncpy(full_path, vol->UNC, unc_len);
pos = full_path + unc_len;
if (pplen) {
strncpy(pos, vol->prepath, pplen);
pos += pplen;
}
*pos = '\0'; /* add trailing null */
convert_delimiter(full_path, CIFS_DIR_SEP(cifs_sb));
cFYI(1, "%s: full_path=%s", __func__, full_path);
return full_path;
}