diff mbox series

[01/15] wifi: iwlwifi: fix EWRD table validity check

Message ID 20240129211905.448ea2f40814.Iffd2aadf8e8693e6cb599bee0406a800a0c1e081@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series wifi: iwlwifi: updates - 2024-01-29 | expand

Commit Message

Miri Korenblit Jan. 29, 2024, 7:21 p.m. UTC
EWRD ACPI table contains up to 3 additional sar profiles.
According to the BIOS spec, the table contains a n_profile
variable indicating how many additional profiles exist in the
table.
Currently we check that n_profiles is not <= 0.
But according to the BIOS spec, 0 is a valid value,
and it can't be < 0 anyway because we receive that from ACPI as
an unsigned integer.

Fixes: 39c1a9728f93 ("iwlwifi: refactor the SAR tables from mvm to acpi")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index dd68d382d7de..9be91e6a9882 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -767,7 +767,7 @@  int iwl_sar_get_ewrd_table(struct iwl_fw_runtime *fwrt)
 	 * from index 1, so the maximum value allowed here is
 	 * ACPI_SAR_PROFILES_NUM - 1.
 	 */
-	if (n_profiles <= 0 || n_profiles >= ACPI_SAR_PROFILE_NUM) {
+	if (n_profiles >= ACPI_SAR_PROFILE_NUM) {
 		ret = -EINVAL;
 		goto out_free;
 	}