[ndctl PATCH v2 1/2] test/cxl-region-sysfs.sh: use '[[ ]]' command to evaluate operands as arithmetic expressions

[Li Zhijian <lizhijian@fujitsu.com>]

It doesn't work for '[ operand1 -ne operand2 ]' where either operand1 or
operand2 is not integer value.
It's tested that bash 4.1/4.2/5.0/5.1 are impacted.

Per bash man page, use '[[ ]]' command to evaluate operands as arithmetic
expressions

Fix errors:
line 111: [: 0x80000000: integer expression expected
line 112: [: 0x3ff110000000: integer expression expected
line 141: [: 0x80000000: integer expression expected
line 143: [: 0x3ff110000000: integer expression expected

Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
---
V2: use '[[ ]]' instead of conversion before comparing in V1
---
 test/cxl-region-sysfs.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/test/cxl-region-sysfs.sh b/test/cxl-region-sysfs.sh
index 8636392..6a5da6d 100644
--- a/test/cxl-region-sysfs.sh
+++ b/test/cxl-region-sysfs.sh
@@ -108,8 +108,8 @@ do
 
 	sz=$(cat /sys/bus/cxl/devices/$i/size)
 	res=$(cat /sys/bus/cxl/devices/$i/start)
-	[ $sz -ne $region_size ] && err "$LINENO: decoder: $i sz: $sz region_size: $region_size"
-	[ $res -ne $region_base ] && err "$LINENO: decoder: $i base: $res region_base: $region_base"
+	[[ $sz -ne $region_size ]] && err "$LINENO: decoder: $i sz: $sz region_size: $region_size"
+	[[ $res -ne $region_base ]] && err "$LINENO: decoder: $i base: $res region_base: $region_base"
 done
 
 # validate all switch decoders have the correct settings
@@ -138,9 +138,9 @@ do
 
 	res=$(echo $decoder | jq -r ".resource")
 	sz=$(echo $decoder | jq -r ".size")
-	[ $sz -ne $region_size ] && err \
+	[[ $sz -ne $region_size ]] && err \
 	"$LINENO: decoder: $i sz: $sz region_size: $region_size"
-	[ $res -ne $region_base ] && err \
+	[[ $res -ne $region_base ]] && err \
 	"$LINENO: decoder: $i base: $res region_base: $region_base"
 done
 
-- 
2.41.0