[lm-sensors] [PATCH v2] lm-sensors: Fix error seen with

[Guenter Roeck <guenter.roeck@ericsson.com>]

The following patch fixes an error seen in sensors-detect if i2c bus numbering
is not sequential. Problem is that in this case, $i2c_adapters[] does not exist
for all index values, causing an error message whenever one of the non-existing
objects is accessed.

The error message is:
        Use of uninitialized value in string eq at ./sensors-detect line 5941.

v2: Keep foreach loop. Check if loop object is defined in each iteration.

--
Index: prog/detect/sensors-detect
=================================--- prog/detect/sensors-detect	(revision 5868)
+++ prog/detect/sensors-detect	(working copy)
@@ -5937,6 +5937,7 @@
 	# the adapter drivers so that the numbers will be the same. If not, then
 	# we only load the adapter drivers which are useful.
 	foreach $adap (@i2c_adapters) {
+		next unless defined $adap;
 		next if $adap->{autoload};
 		next if $adap->{driver} eq 'UNKNOWN';
 		next if not defined $configfile and not $adap->{used};

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