diff mbox series

iwlwifi: Fix memory leak on reduce_power_data buffer

Message ID 20210723141152.134340-1-colin.king@canonical.com
State New
Headers show
Series iwlwifi: Fix memory leak on reduce_power_data buffer | expand

Commit Message

Colin King July 23, 2021, 2:11 p.m. UTC 
From: Colin Ian King <colin.king@canonical.com>

In the error case where the TLV length is invalid the allocated
reduce_power_data buffer pointer is set to ERR_PTR(-EINVAL) without
first kfree'ing any previous allocated memory. Fix this memory
leak by kfree'ing it before taking the error return path.

Addresses-Coverity: ("Resource leak")
Fixes: 9dad325f9d57 ("iwlwifi: support loading the reduced power table from UEFI")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/uefi.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c
index a7c79d814aa4..413bfb2ae54d 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c
@@ -86,6 +86,7 @@  static void *iwl_uefi_reduce_power_section(struct iwl_trans *trans,
 		if (len < tlv_len) {
 			IWL_ERR(trans, "invalid TLV len: %zd/%u\n",
 				len, tlv_len);
+			kfree(reduce_power_data);
 			reduce_power_data = ERR_PTR(-EINVAL);
 			goto out;
 		}