From: Michal Simek <michal.simek@xilinx.com>
Date: Wed, 13 Jun 2018 07:12:29 +0000 (+0200)
Subject: mmc: zynq: Fix tuning_loop_counter type in arasan_sdhci_execute_tuning()
X-Git-Tag: v2018.07-rc2~49^2~7
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=b6911780b5b494bc2a455039082990c960190ddc;p=oweals%2Fu-boot.git

mmc: zynq: Fix tuning_loop_counter type in arasan_sdhci_execute_tuning()

Code around tuning_loop_counter variable expects to go below zero.
That's why this variable can't use unsigned type.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index 5b6d525608..b05334dfc8 100644
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -92,7 +92,7 @@ static int arasan_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
 	u32 ctrl;
 	struct sdhci_host *host;
 	struct arasan_sdhci_priv *priv = dev_get_priv(mmc->dev);
-	u8 tuning_loop_counter = SDHCI_TUNING_LOOP_COUNT;
+	char tuning_loop_counter = SDHCI_TUNING_LOOP_COUNT;
 	u8 deviceid;
 
 	debug("%s\n", __func__);