iwlwifi: fw: make dump_start callback void

We never return errors there, so just make it void.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220130115024.375b3a28d89e.Ia76e9bf13e26eb148abfebdaf859eab1b81d2af1@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/fw/dbg.c

@@ -2939,9 +2939,8 @@ void iwl_fw_error_dump_wk(struct work_struct *work)
 	/* assumes the op mode mutex is locked in dump_start since
 	 * iwl_fw_dbg_collect_sync can't run in parallel
 	 */
-	if (fwrt->ops && fwrt->ops->dump_start &&
-	    fwrt->ops->dump_start(fwrt->ops_ctx))
-		return;
+	if (fwrt->ops && fwrt->ops->dump_start)
+		fwrt->ops->dump_start(fwrt->ops_ctx);
 
 	iwl_fw_dbg_collect_sync(fwrt, wks->idx);
 

drivers/net/wireless/intel/iwlwifi/fw/runtime.h

@@ -16,7 +16,7 @@
 #include "fw/acpi.h"
 
 struct iwl_fw_runtime_ops {
-	int (*dump_start)(void *ctx);
+	void (*dump_start)(void *ctx);
 	void (*dump_end)(void *ctx);
 	bool (*fw_running)(void *ctx);
 	int (*send_hcmd)(void *ctx, struct iwl_host_cmd *host_cmd);

drivers/net/wireless/intel/iwlwifi/mvm/ops.c

@@ -639,13 +639,11 @@ static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
 	mutex_unlock(&mvm->mutex);
 }
 
-static int iwl_mvm_fwrt_dump_start(void *ctx)
+static void iwl_mvm_fwrt_dump_start(void *ctx)
 {
 	struct iwl_mvm *mvm = ctx;
 
 	mutex_lock(&mvm->mutex);
-
-	return 0;
 }
 
 static void iwl_mvm_fwrt_dump_end(void *ctx)