diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index cc8d00343b9efc0d2a1cd36c127788f8f5586e48..52e6e618b317b06170c730c141b79d39a1ae5a8f 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -95,6 +95,8 @@ 16, 4, buf, __len, false); \ } while (0) +static bool early_suspend; + int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len, const char *prefix) { @@ -8952,8 +8954,14 @@ int ufshcd_system_suspend(struct ufs_hba *hba) int ret = 0; ktime_t start = ktime_get(); + if (!hba) { + early_suspend = true; + return 0; + } + down(&hba->eh_sem); - if (!hba || !hba->is_powered) + + if (!hba->is_powered) return 0; if ((ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl) == @@ -9001,9 +9009,12 @@ int ufshcd_system_resume(struct ufs_hba *hba) int ret = 0; ktime_t start = ktime_get(); - if (!hba) { - up(&hba->eh_sem); + if (!hba) return -EINVAL; + + if (unlikely(early_suspend)) { + early_suspend = false; + down(&hba->eh_sem); } if (!hba->is_powered || pm_runtime_suspended(hba->dev))