lmsensors: sensors-detect: print a special message when there isn't enough cpu info

When running sensors-detect, if there isn't enough information in
/proc/cpuinfo for this arch (e.g. ppc64), "Use of uninitialized value
in concatenation (.) or string at /usr/sbin/sensors-detect line 2867"
and incomplete "# Processor: (//)" will be printed.
Here print out a prompt for such a case.

Signed-off-by: Li Zhou <li.zhou@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

2 files changed, 41 insertions, 0 deletions

diff --git a/meta-oe/recipes-support/lm_sensors/lmsensors/0001-lmsensors-sensors-detect-print-a-special-message-whe.patch b/meta-oe/recipes-support/lm_sensors/lmsensors/0001-lmsensors-sensors-detect-print-a-special-message-whe.patch
new file mode 100644
index 000000000..abf6e752a
--- /dev/null
+++ b/meta-oe/recipes-support/lm_sensors/lmsensors/0001-lmsensors-sensors-detect-print-a-special-message-whe.patch
@@ -0,0 +1,40 @@
+From c4428260e7685ebaf5c26c6ecaae5a56849853e8 Mon Sep 17 00:00:00 2001
+From: Li Zhou <li.zhou@windriver.com>
+Date: Tue, 6 Sep 2016 14:04:29 +0800
+Subject: [PATCH] lmsensors: sensors-detect: print a special message when there
+ isn't enough cpu info
+
+When running sensors-detect, if there isn't enough information in
+/proc/cpuinfo for this arch (e.g. ppc64), "Use of uninitialized value
+in concatenation (.) or string at /usr/sbin/sensors-detect line 2867"
+and incomplete "# Processor: (//)" will be printed.
+Here print out a prompt for such a case.
+
+Upstream-Status: Pending
+
+Signed-off-by: Li Zhou <li.zhou@windriver.com>
+---
+ prog/detect/sensors-detect | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/prog/detect/sensors-detect b/prog/detect/sensors-detect
+index 3c2b44f..5f62405 100755
+--- a/prog/detect/sensors-detect
++++ b/prog/detect/sensors-detect
+@@ -2864,7 +2864,12 @@ sub initialize_cpu_list
+ sub print_cpu_info
+ {
+        my $cpu = $cpu[0];
+-       print "# Processor: $cpu->{'model name'} ($cpu->{'cpu family'}/$cpu->{model}/$cpu->{stepping})\n";
++       if ( $cpu->{'model name'} && $cpu->{'cpu family'} && $cpu->{model} && $cpu->{stepping} ) {
++               print "# Processor: $cpu->{'model name'} ($cpu->{'cpu family'}/$cpu->{model}/$cpu->{stepping})\n";
++       }
++       else {
++               print "# Processor: There isn't enough cpu info for this arch!!!\n";
++       }
+ }
+ 
+ # @i2c_adapters is a list of references to hashes, one hash per I2C/SMBus
+-- 
+1.9.1
+
diff --git a/meta-oe/recipes-support/lm_sensors/lmsensors_3.4.0.bb b/meta-oe/recipes-support/lm_sensors/lmsensors_3.4.0.bb
index 857a57be5..8215d90a8 100644
--- a/meta-oe/recipes-support/lm_sensors/lmsensors_3.4.0.bb
+++ b/meta-oe/recipes-support/lm_sensors/lmsensors_3.4.0.bb
@@ -10,6 +10,7 @@ DEPENDS = "sysfsutils virtual/libiconv bison-native flex-native rrdtool"
 SRC_URI = "http://dl.lm-sensors.org/lm-sensors/releases/lm_sensors-${PV}.tar.bz2 \
            file://fancontrol.init \
            file://sensord.init \
+           file://0001-lmsensors-sensors-detect-print-a-special-message-whe.patch \
 "
 SRC_URI[md5sum] = "c03675ae9d43d60322110c679416901a"
 SRC_URI[sha256sum] = "e0579016081a262dd23eafe1d22b41ebde78921e73a1dcef71e05e424340061f"