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authorZhu Yi <yi.zhu@intel.com>2009-01-08 10:19:58 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-01-16 17:08:23 -0500
commit73e1a65d3c4a013f6fa56e47133be95143a75fe3 (patch)
tree825a40a62522c5571f0c617bae95c4230dc60b6b /drivers/net
parent9d97f2e55e3df44e3b6b4cc58b091501ba7ee0ac (diff)
iwlwifi: remove CMD_WANT_SKB flag if send_cmd_sync failure
In function iwl_send_cmd_sync(), if the flag CMD_WANT_SKB is set but we are not provided with a valid SKB (cmd->meta.u.skb == NULL), we need to remove the CMD_WANT_SKB flag from the TX cmd queue. Otherwise in case the cmd comes in later, it will possibly set an invalid address. Thus it causes an invalid memory access. This fixed the bug http://bugzilla.kernel.org/show_bug.cgi?id=11326. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-hcmd.c2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl3945-base.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
index 8c71ad4f88c5..4b35b30e493e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c
+++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
@@ -224,7 +224,7 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
IWL_ERROR("Error: Response NULL in '%s'\n",
get_cmd_string(cmd->id));
ret = -EIO;
- goto out;
+ goto cancel;
}
ret = 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index d64580805d6e..15f5655c636e 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -745,7 +745,7 @@ static int iwl3945_send_cmd_sync(struct iwl3945_priv *priv, struct iwl3945_host_
IWL_ERROR("Error: Response NULL in '%s'\n",
get_cmd_string(cmd->id));
ret = -EIO;
- goto out;
+ goto cancel;
}
ret = 0;