Remove more unnecessary NULL checks before free()

Author: dcommander

cjpeg.c

@@ -682,12 +682,10 @@ main(int argc, char **argv)
 
   if (memdst) {
     fprintf(stderr, "Compressed size:  %lu bytes\n", outsize);
-    if (outbuffer != NULL)
-      free(outbuffer);
+    free(outbuffer);
   }
 
-  if (icc_profile != NULL)
-    free(icc_profile);
+  free(icc_profile);
 
   /* All done. */
   exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);

djpeg.c

@@ -813,7 +813,7 @@ main(int argc, char **argv)
   end_progress_monitor((j_common_ptr)&cinfo);
 #endif
 
-  if (memsrc && inbuffer != NULL)
+  if (memsrc)
     free(inbuffer);
 
   /* All done. */

jdatadst-tj.c

@@ -103,8 +103,7 @@ empty_mem_output_buffer(j_compress_ptr cinfo)
 
   MEMCOPY(nextbuffer, dest->buffer, dest->bufsize);
 
-  if (dest->newbuffer != NULL)
-    free(dest->newbuffer);
+  free(dest->newbuffer);
 
   dest->newbuffer = nextbuffer;
 

jdatadst.c

@@ -143,8 +143,7 @@ empty_mem_output_buffer(j_compress_ptr cinfo)
 
   MEMCOPY(nextbuffer, dest->buffer, dest->bufsize);
 
-  if (dest->newbuffer != NULL)
-    free(dest->newbuffer);
+  free(dest->newbuffer);
 
   dest->newbuffer = nextbuffer;
 

jpegtran.c

@@ -591,8 +591,7 @@ main(int argc, char **argv)
   end_progress_monitor((j_common_ptr)&dstinfo);
 #endif
 
-  if (icc_profile != NULL)
-    free(icc_profile);
+  free(icc_profile);
 
   /* All done. */
   exit(jsrcerr.num_warnings + jdsterr.num_warnings ?