Add fix to check for vector size while reading pp_dpm_pcie

pop_back() was causing a seg fault when pp_dpm_pcie file is empty and returns whitespace. Signed-off-by: Divya Shikre <[email protected]> Change-Id: I888f1f79751cd456e43751a5b96d08560a039677 (cherry picked from commit ec71380)
ROCm · Jan 28, 2022 · 66e101a · 66e101a
1 parent bd3fda7
commit 66e101a
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/rocm_smi_device.cc b/src/rocm_smi_device.cc
@@ -630,7 +630,7 @@ int Device::writeDevInfoStr(DevInfoTypes type, std::string valStr) {
     ret = RSMI_STATUS_NOT_SUPPORTED;
   }
   fs.close();
-  
+
   return ret;
 }
 
@@ -742,7 +742,8 @@ int Device::readDevInfoMultiLineStr(DevInfoTypes type,
     return 0;
   }
   // Remove any *trailing* empty (whitespace) lines
-  while (retVec->back().find_first_not_of(" \t\n\v\f\r") == std::string::npos) {
+  while (retVec->size() != 0 &&
+        retVec->back().find_first_not_of(" \t\n\v\f\r") == std::string::npos) {
     retVec->pop_back();
   }
   return 0;