powerpc/powernv: Add error handling to opal_prd_range_is_valid

In the opal_prd_range_is_valid function within opal-prd.c,
error handling was missing for the of_get_address call.
This patch adds necessary error checking, ensuring that the
function gracefully handles scenarios where of_get_address fails.

Signed-off-by: Haoran Liu <liuhaoran14@163.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231127144108.29782-1-liuhaoran14@163.com

diff --git a/arch/powerpc/platforms/powernv/opal-prd.c b/arch/powerpc/platforms/powernv/opal-prd.c
index 327e2f7..b66b06e 100644 (file)
--- a/arch/powerpc/platforms/powernv/opal-prd.c
+++ b/arch/powerpc/platforms/powernv/opal-prd.c
@@ -66,6 +66,8 @@ static bool opal_prd_range_is_valid(uint64_t addr, uint64_t size)
                const char *label;
 
                addrp = of_get_address(node, 0, &range_size, NULL);
+               if (!addrp)
+                       continue;
 
                range_addr = of_read_number(addrp, 2);
                range_end = range_addr + range_size;