[PATCH 7/7] powerpc: unrel_branch_check.sh: exit silently for early errors

[Stephen Rothwell]

If we can't find the address of __end_interrupts, then we still exit
successfully as that is the current behaviour.

Cc: Nicholas Piggin <npiggin at gmail.com>
Signed-off-by: Stephen Rothwell <sfr at canb.auug.org.au>
---
 arch/powerpc/tools/unrel_branch_check.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/tools/unrel_branch_check.sh b/arch/powerpc/tools/unrel_branch_check.sh
index 4489f16a443c..70da90270c78 100755
--- a/arch/powerpc/tools/unrel_branch_check.sh
+++ b/arch/powerpc/tools/unrel_branch_check.sh
@@ -14,9 +14,12 @@ kstart=0xc000000000000000
 printf -v kend '0x%x' $(( kstart + 0x10000 ))
 
 end_intr=0x$(
-$objdump -R -d --start-address="$kstart" --stop-address="$kend" "$vmlinux" |
+$objdump -R -d --start-address="$kstart" --stop-address="$kend" "$vmlinux" 2>/dev/null |
 awk '$2 == "<__end_interrupts>:" { print $1 }'
 )
+if [ "$end_intr" = "0x" ]; then
+	exit 0
+fi
 
 $objdump -R -D --no-show-raw-insn --start-address="$kstart" --stop-address="$end_intr" "$vmlinux" |
 sed -E -n '
-- 
2.28.0