[llvm-commits] [llvm] r140314 - /llvm/trunk/runtime/libprofile/CommonProfiling.c

[Galina Kistanova]

Author: gkistanova
Date: Thu Sep 22 12:33:24 2011
New Revision: 140314

URL: http://llvm.org/viewvc/llvm-project?rev=140314&view=rev
Log:
Fix for warnings: ignoring return value of ‘write’, declared with attribute warn_unused_result.

Modified:
    llvm/trunk/runtime/libprofile/CommonProfiling.c

Modified: llvm/trunk/runtime/libprofile/CommonProfiling.c
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/runtime/libprofile/CommonProfiling.c?rev=140314&r1=140313&r2=140314&view=diff
==============================================================================
--- llvm/trunk/runtime/libprofile/CommonProfiling.c (original)
+++ llvm/trunk/runtime/libprofile/CommonProfiling.c Thu Sep 22 12:33:24 2011
@@ -102,12 +102,19 @@
     {
       int PTy = ArgumentInfo;
       int Zeros = 0;
-      write(OutFile, &PTy, sizeof(int));
-      write(OutFile, &SavedArgsLength, sizeof(unsigned));
-      write(OutFile, SavedArgs, SavedArgsLength);
+      if (write(OutFile, &PTy, sizeof(int)) < 0 ||
+          write(OutFile, &SavedArgsLength, sizeof(unsigned)) < 0 ||
+          write(OutFile, SavedArgs, SavedArgsLength) < 0 ) {
+        fprintf(stderr,"error: unable to write to output file.");
+        exit(0);
+      }
       /* Pad out to a multiple of four bytes */
-      if (SavedArgsLength & 3)
-        write(OutFile, &Zeros, 4-(SavedArgsLength&3));
+      if (SavedArgsLength & 3) {
+        if (write(OutFile, &Zeros, 4-(SavedArgsLength&3)) < 0) {
+          fprintf(stderr,"error: unable to write to output file.");
+          exit(0);
+        }
+      }
     }
   }
   return(OutFile);