From: Chen Gong <g.chen@freescale.com>
Date: Thu, 5 Jun 2008 13:50:04 +0000 (+0800)
Subject: [MTD] m25p80.c mutex unlock fix
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bc01886352c277e310c07befadbb617c8f561b89;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[MTD] m25p80.c mutex unlock fix

fix a mutex release bug in function m25p80_write.

Signed-off-by: Chen Gong <g.chen@freescale.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 25efd331ef28..b402269301f6 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -346,8 +346,10 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 	mutex_lock(&flash->lock);
 
 	/* Wait until finished previous write command. */
-	if (wait_till_ready(flash))
+	if (wait_till_ready(flash)) {
+		mutex_unlock(&flash->lock);
 		return 1;
+	}
 
 	write_enable(flash);