1 files changed, 47 insertions, 35 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 156cabf..fffa833 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -749,6 +749,49 @@ static int get_card_status(struct mmc_card *card, u32 *status, int retries)
 	return err;
 }
 
+static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
+		struct request *req, int *gen_err)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+	int err = 0;
+	u32 status;
+
+	do {
+		err = get_card_status(card, &status, 5);
+		if (err) {
+			pr_err("%s: error %d requesting status\n",
+			       req->rq_disk->disk_name, err);
+			return err;
+		}
+
+		if (status & R1_ERROR) {
+			pr_err("%s: %s: error sending status cmd, status %#x\n",
+				req->rq_disk->disk_name, __func__, status);
+			*gen_err = 1;
+		}
+
+		/*
+		 * Timeout if the device never becomes ready for data and never
+		 * leaves the program state.
+		 */
+		if (time_after(jiffies, timeout)) {
+			pr_err("%s: Card stuck in programming state! %s %s\n",
+				mmc_hostname(card->host),
+				req->rq_disk->disk_name, __func__);
+			return -ETIMEDOUT;
+		}
+
+		/*
+		 * Some cards mishandle the status bits,
+		 * so make sure to check both the busy
+		 * indication and the card state.
+		 */
+	} while (!(status & R1_READY_FOR_DATA) ||
+		 (R1_CURRENT_STATE(status) == R1_STATE_PRG));
+
+	return err;
+}
+
 #define ERR_NOMEDIUM	3
 #define ERR_RETRY	2
 #define ERR_ABORT	1
@@ -1156,8 +1199,7 @@ static int mmc_blk_err_check(struct mmc_card *card,
 	 * program mode, which we have to wait for it to complete.
 	 */
 	if (!mmc_host_is_spi(card->host) && rq_data_dir(req) != READ) {
-		u32 status;
-		unsigned long timeout;
+		int err;
 
 		/* Check stop command response */
 		if (brq->stop.resp[0] & R1_ERROR) {
@@ -1167,39 +1209,9 @@ static int mmc_blk_err_check(struct mmc_card *card,
 			gen_err = 1;
 		}
 
-		timeout = jiffies + msecs_to_jiffies(MMC_BLK_TIMEOUT_MS);
-		do {
-			int err = get_card_status(card, &status, 5);
-			if (err) {
-				pr_err("%s: error %d requesting status\n",
-				       req->rq_disk->disk_name, err);
-				return MMC_BLK_CMD_ERR;
-			}
-
-			if (status & R1_ERROR) {
-				pr_err("%s: %s: general error sending status command, card status %#x\n",
-				       req->rq_disk->disk_name, __func__,
-				       status);
-				gen_err = 1;
-			}
-
-			/* Timeout if the device never becomes ready for data
-			 * and never leaves the program state.
-			 */
-			if (time_after(jiffies, timeout)) {
-				pr_err("%s: Card stuck in programming state!"\
-					" %s %s\n", mmc_hostname(card->host),
-					req->rq_disk->disk_name, __func__);
-
-				return MMC_BLK_CMD_ERR;
-			}
-			/*
-			 * Some cards mishandle the status bits,
-			 * so make sure to check both the busy
-			 * indication and the card state.
-			 */
-		} while (!(status & R1_READY_FOR_DATA) ||
-			 (R1_CURRENT_STATE(status) == R1_STATE_PRG));
+		err = card_busy_detect(card, MMC_BLK_TIMEOUT_MS, req, &gen_err);
+		if (err)
+			return MMC_BLK_CMD_ERR;
 	}
 
 	/* if general error occurs, retry the write operation. */