In emif_get_id(), of_get_address() may return NULL which is later
dereferenced. Fix this bug by adding NULL check.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 6f15b178cd63 ("EDAC/versal: Add a Xilinx Versal memory controller driver")
Signed-off-by: Ma Ke <make24@xxxxxxxxxxx>
---
Changes in v3:
- added Cc stable line.
Changes in v2:
- fixed the typo according to suggestions.
---
drivers/edac/versal_edac.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/edac/versal_edac.c b/drivers/edac/versal_edac.c
index a556d23e8261..7aa9468acd53 100644
--- a/drivers/edac/versal_edac.c
+++ b/drivers/edac/versal_edac.c
@@ -1053,6 +1053,9 @@ static u32 emif_get_id(struct device_node *node)
const __be32 *addrp;
addrp = of_get_address(node, 0, NULL, NULL);
+ if (!addrp)
+ return -EINVAL;
+
my_addr = (u32)of_translate_address(node, addrp);
for_each_matching_node(np, xlnx_edac_match) {
--
2.25.1
