gcov-clang-support-checkpatch-fixes

WARNING: Non-standard signature: Co-authored-by:
torvalds#31: 
Co-authored-by: Nick Desaulniers <ndesaulniers@google.com>

WARNING: Non-standard signature: Co-authored-by:
torvalds#32: 
Co-authored-by: Tri Vo <trong@android.com>

WARNING: Possible unnecessary 'out of memory' message
torvalds#158: FILE: kernel/gcov/clang.c:90:
+	if (!info) {
+		pr_warn_ratelimited("failed to allocate gcov info\n");

WARNING: Possible unnecessary 'out of memory' message
torvalds#193: FILE: kernel/gcov/clang.c:125:
+	if (!info) {
+		pr_warn_ratelimited("failed to allocate gcov function info for %s\n",

WARNING: line over 80 characters
torvalds#546: FILE: kernel/gcov/clang.c:478:
+			pos += store_gcov_u32(buffer, pos, fi_ptr->cfg_checksum);

total: 0 errors, 5 warnings, 663 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/gcov-clang-support.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Daniel Mentz <danielmentz@google.com>
Cc: Greg Hackmann <ghackmann@android.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Petri Gynther <pgynther@google.com>
Cc: Prasad Sodagudi <psodagud@quicinc.com>
Cc: Trilok Soni <tsoni@quicinc.com>
Cc: Tri Vo <trong@android.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

kernel/gcov/clang.c

@@ -86,10 +86,8 @@ void llvm_gcov_init(llvm_gcov_callback writeout, llvm_gcov_callback flush)
 {
 	struct gcov_info *info = kzalloc(sizeof(*info), GFP_KERNEL);
 
-	if (!info) {
-		pr_warn_ratelimited("failed to allocate gcov info\n");
+	if (!info)
 		return;
-	}
 
 	INIT_LIST_HEAD(&info->head);
 	INIT_LIST_HEAD(&info->functions);
@@ -121,11 +119,8 @@ void llvm_gcda_emit_function(u32 ident, const char *function_name,
 {
 	struct gcov_fn_info *info = kzalloc(sizeof(*info), GFP_KERNEL);
 
-	if (!info) {
-		pr_warn_ratelimited("failed to allocate gcov function info for %s\n",
-				function_name ?: "UNKNOWN");
+	if (!info)
 		return;
-	}
 
 	INIT_LIST_HEAD(&info->head);
 	info->ident = ident;