Patch "wifi: ath11k: Add missing check for ioremap" has been added to the 6.3-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    wifi: ath11k: Add missing check for ioremap

to the 6.3-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     wifi-ath11k-add-missing-check-for-ioremap.patch
and it can be found in the queue-6.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 198cd98bde5bfa16b65ea75741ed40e282eb105d
Author: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
Date:   Tue Jun 13 12:19:40 2023 +0300

    wifi: ath11k: Add missing check for ioremap
    
    [ Upstream commit 16e0077e14a73866e9b0f4a6bf4ad3d4a5cb0f2a ]
    
    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@xxxxxxxxxxx>
    Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230608022858.27405-1-jiasheng@xxxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index ab923e24b0a9c..2328b9447cf1b 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;