Merge tag 'mmc-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull mmc fixes from Ulf Hansson:
 "MMC core:
   - Fix NULL dereference for mmc_test on allocation failure

  MMC host:
   - dw_mmc: Fix support for deferred probe for biu/ciu clocks
   - mtk-sd: Fix CMD8 support when fragile tuning settings"

* tag 'mmc-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: mmc_test: Fix NULL dereference on allocation failure
  mmc: dw_mmc: allow biu and ciu clocks to defer
  mmc: mtk-sd: receive cmd8 data when hs400 tuning fail

3 files changed, 17 insertions, 8 deletions

diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
index 8f7f587a0025..b7f627a9fdea 100644
--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -3125,13 +3125,13 @@ static ssize_t mtf_test_write(struct file *file, const char __user *buf,
 	test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
 #ifdef CONFIG_HIGHMEM
 	test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
+	if (!test->highmem) {
+		count = -ENOMEM;
+		goto free_test_buffer;
+	}
 #endif
 
-#ifdef CONFIG_HIGHMEM
-	if (test->buffer && test->highmem) {
-#else
 	if (test->buffer) {
-#endif
 		mutex_lock(&mmc_test_lock);
 		mmc_test_run(test, testcase);
 		mutex_unlock(&mmc_test_lock);
@@ -3139,6 +3139,7 @@ static ssize_t mtf_test_write(struct file *file, const char __user *buf,
 
 #ifdef CONFIG_HIGHMEM
 	__free_pages(test->highmem, BUFFER_ORDER);
+free_test_buffer:
 #endif
 	kfree(test->buffer);
 	kfree(test);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 2333ef4893ee..e9f6e4e62290 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -3299,6 +3299,10 @@ int dw_mci_probe(struct dw_mci *host)
 	host->biu_clk = devm_clk_get(host->dev, "biu");
 	if (IS_ERR(host->biu_clk)) {
 		dev_dbg(host->dev, "biu clock not available\n");
+		ret = PTR_ERR(host->biu_clk);
+		if (ret == -EPROBE_DEFER)
+			return ret;
+
 	} else {
 		ret = clk_prepare_enable(host->biu_clk);
 		if (ret) {
@@ -3310,6 +3314,10 @@ int dw_mci_probe(struct dw_mci *host)
 	host->ciu_clk = devm_clk_get(host->dev, "ciu");
 	if (IS_ERR(host->ciu_clk)) {
 		dev_dbg(host->dev, "ciu clock not available\n");
+		ret = PTR_ERR(host->ciu_clk);
+		if (ret == -EPROBE_DEFER)
+			goto err_clk_biu;
+
 		host->bus_hz = host->pdata->bus_hz;
 	} else {
 		ret = clk_prepare_enable(host->ciu_clk);
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index a94835b8ab93..e386f78e3267 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -1230,7 +1230,7 @@ static bool msdc_cmd_done(struct msdc_host *host, int events,
 	}
 
 	if (!sbc_error && !(events & MSDC_INT_CMDRDY)) {
-		if (events & MSDC_INT_CMDTMO ||
+		if ((events & MSDC_INT_CMDTMO && !host->hs400_tuning) ||
 		    (!mmc_op_tuning(cmd->opcode) && !host->hs400_tuning))
 			/*
 			 * should not clear fifo/interrupt as the tune data
@@ -1323,9 +1323,9 @@ static void msdc_start_command(struct msdc_host *host,
 static void msdc_cmd_next(struct msdc_host *host,
 		struct mmc_request *mrq, struct mmc_command *cmd)
 {
-	if ((cmd->error &&
-	    !(cmd->error == -EILSEQ &&
-	      (mmc_op_tuning(cmd->opcode) || host->hs400_tuning))) ||
+	if ((cmd->error && !host->hs400_tuning &&
+	     !(cmd->error == -EILSEQ &&
+	     mmc_op_tuning(cmd->opcode))) ||
 	    (mrq->sbc && mrq->sbc->error))
 		msdc_request_done(host, mrq);
 	else if (cmd == mrq->sbc)