net, wireless, mwifiex: Fix mem leak in mwifiex_update_curr_bss_params()

If kmemdup() fails we leak the memory allocated to bss_desc.
This patch fixes the leak.
I also removed the pointless default assignment of 'NULL' to 'bss_desc'
while I was there anyway.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index dae8dbb..8a3f959 100644 (file)
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1469,7 +1469,7 @@ mwifiex_update_curr_bss_params(struct mwifiex_private *priv, u8 *bssid,
                               s32 rssi, const u8 *ie_buf, size_t ie_len,
                               u16 beacon_period, u16 cap_info_bitmap, u8 band)
 {
-       struct mwifiex_bssdescriptor *bss_desc = NULL;
+       struct mwifiex_bssdescriptor *bss_desc;
        int ret;
        unsigned long flags;
        u8 *beacon_ie;
@@ -1484,6 +1484,7 @@ mwifiex_update_curr_bss_params(struct mwifiex_private *priv, u8 *bssid,
 
        beacon_ie = kmemdup(ie_buf, ie_len, GFP_KERNEL);
        if (!beacon_ie) {
+               kfree(bss_desc);
                dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
                return -ENOMEM;
        }