From 16e0077e14a73866e9b0f4a6bf4ad3d4a5cb0f2a Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 13 Jun 2023 12:19:40 +0300
Subject: [PATCH] wifi: ath11k: Add missing check for ioremap
Git-commit: 16e0077e14a73866e9b0f4a6bf4ad3d4a5cb0f2a
Patch-mainline: v6.5-rc1
References: git-fixes
Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap(), same as in
ath11k_qmi_load_file_target_mem().
Fixes: 6ac04bdc5edb ("ath11k: Use reserved host DDR addresses from DT for PCI devices")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230608022858.27405-1-jiasheng@iscas.ac.cn
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/ath11k/qmi.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index 5da4c7663b45..5d1c03b7befe 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -2058,6 +2058,9 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
ab->qmi.target_mem[idx].iaddr =
ioremap(ab->qmi.target_mem[idx].paddr,
ab->qmi.target_mem[i].size);
+ if (!ab->qmi.target_mem[idx].iaddr)
+ return -EIO;
+
ab->qmi.target_mem[idx].size = ab->qmi.target_mem[i].size;
host_ddr_sz = ab->qmi.target_mem[i].size;
ab->qmi.target_mem[idx].type = ab->qmi.target_mem[i].type;
@@ -2083,6 +2086,8 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
ab->qmi.target_mem[idx].iaddr =
ioremap(ab->qmi.target_mem[idx].paddr,
ab->qmi.target_mem[i].size);
+ if (!ab->qmi.target_mem[idx].iaddr)
+ return -EIO;
} else {
ab->qmi.target_mem[idx].paddr =
ATH11K_QMI_CALDB_ADDRESS;
--
2.35.3