6.12-stable review patch. If anyone has any objections, please let me know.
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From: Peter Wang peter.wang@mediatek.com
[ Upstream commit 014de20bb36ba03e0e0b0a7e0a1406ab900c9fda ]
Address a race condition between shutdown and suspend operations in the UFS Mediatek driver. Before entering suspend, check if a shutdown is in progress to prevent conflicts and ensure system stability.
Signed-off-by: Peter Wang peter.wang@mediatek.com Acked-by: Chun-Hung Wu chun-hung.wu@mediatek.com Link: https://patch.msgid.link/20250924094527.2992256-6-peter.wang@mediatek.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/ufs/host/ufs-mediatek.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 00ecfe14c1fd..1fb98af4ac56 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1994,6 +1994,11 @@ static int ufs_mtk_system_suspend(struct device *dev) struct arm_smccc_res res; int ret;
+ if (hba->shutting_down) { + ret = -EBUSY; + goto out; + } + ret = ufshcd_system_suspend(dev); if (ret) goto out;