diff options
| author | Bill Pemberton <wfp5p@virginia.edu> | 2012-10-09 18:18:19 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-17 21:10:10 (GMT) |
| commit | d7c4660c12adc5c66351253af381259686fa08a4 (patch) | |
| tree | 62743423b33605d87076851693cf1143c89a3ba6 | |
| parent | 367ff459e54d1bc471880aef21239d2a0a03b12e (diff) | |
| download | linux-d7c4660c12adc5c66351253af381259686fa08a4.tar.xz | |
staging: dgrp: check for NULL pointer in (un)register_proc_table
register_proc_table and unregister_proc_table didn't deal with the
possibility that the *table pointer could be NULL. Check for this and
return if table is NULL.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/dgrp/dgrp_specproc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index a5840e7..24327c3 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -229,6 +229,9 @@ static void register_proc_table(struct dgrp_proc_entry *table, int len; mode_t mode; + if (table == NULL) + return; + for (; table->id; table++) { /* Can't do anything without a proc name. */ if (!table->name) @@ -297,6 +300,9 @@ static void unregister_proc_table(struct dgrp_proc_entry *table, struct proc_dir_entry *de; struct nd_struct *tmp; + if (table == NULL) + return; + list_for_each_entry(tmp, &nd_struct_list, list) { if ((table == dgrp_net_table) && (tmp->nd_net_de)) { unregister_dgrp_device(tmp->nd_net_de); |