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>

1 files changed, 3 insertions, 0 deletions

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);