diff mbox series

[5/8] iwlwifi: pnvm: increment the pointer before checking the TLV

Message ID iwlwifi.20210210172142.de94d366f3ff.I9a5a54906cf0f4ec8af981d6066bfd771152ffb9@changeid (mailing list archive)
State Accepted
Commit ff11a8ee2d2d0f78514ac9b42fb50c525ca695c7
Delegated to: Luca Coelho
Headers show
Series iwlwifi: updates intended for v5.12 2021-02-10 part 2 | expand

Commit Message

Luca Coelho Feb. 10, 2021, 3:23 p.m. UTC 
From: Luca Coelho <luciano.coelho@intel.com>

If the SKU_ID doesn't match, we don't increment the pointer and keep
checking the same TLV over and over again.

We need to increment the pointer in all situtations, namely if the TLV
is not a SKU_ID, if the SKU_ID matched or if the SKU_ID didn't match.
So we can increment the pointer already before checking for these
conditions to solve the problem.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Fixes: 6972592850c0 ("iwlwifi: read and parse PNVM file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/pnvm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
index 1e16f83b402b..37ce4fe136c5 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
@@ -198,14 +198,14 @@  static int iwl_pnvm_parse(struct iwl_trans *trans, const u8 *data,
 				     le32_to_cpu(sku_id->data[1]),
 				     le32_to_cpu(sku_id->data[2]));
 
+			data += sizeof(*tlv) + ALIGN(tlv_len, 4);
+			len -= ALIGN(tlv_len, 4);
+
 			if (trans->sku_id[0] == le32_to_cpu(sku_id->data[0]) &&
 			    trans->sku_id[1] == le32_to_cpu(sku_id->data[1]) &&
 			    trans->sku_id[2] == le32_to_cpu(sku_id->data[2])) {
 				int ret;
 
-				data += sizeof(*tlv) + ALIGN(tlv_len, 4);
-				len -= ALIGN(tlv_len, 4);
-
 				ret = iwl_pnvm_handle_section(trans, data, len);
 				if (!ret)
 					return 0;