From: Madalin Bucur <madalin.bucur@nxp.com>
Date: Wed, 16 Nov 2016 14:40:14 +0000 (+0200)
Subject: soc/qman: Check ioremap return value
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=02b7d2a833b007bae45be8d4adbae0f2a43d8dc4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

soc/qman: Check ioremap return value

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
---

diff --git a/drivers/soc/fsl/qbman/qman_ccsr.c b/drivers/soc/fsl/qbman/qman_ccsr.c
index 0cace9e0077e..f4e6e70de259 100644
--- a/drivers/soc/fsl/qbman/qman_ccsr.c
+++ b/drivers/soc/fsl/qbman/qman_ccsr.c
@@ -444,6 +444,9 @@ static int zero_priv_mem(struct device *dev, struct device_node *node,
 	/* map as cacheable, non-guarded */
 	void __iomem *tmpp = ioremap_prot(addr, sz, 0);
 
+	if (!tmpp)
+		return -ENOMEM;
+
 	memset_io(tmpp, 0, sz);
 	flush_dcache_range((unsigned long)tmpp,
 			   (unsigned long)tmpp + sz);