[PATCH] modpost: check strdup() return value

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From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Fix missing error check for function strdup() in scripts/mod/modpost.c.

Fixes kernel bugzilla #200319:
https://bugzilla.kernel.org/show_bug.cgi?id=200319

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Yuexing Wang <wangyxlandq@xxxxxxxxx>
Cc: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---
 scripts/mod/modpost.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20180814.orig/scripts/mod/modpost.c
+++ linux-next-20180814/scripts/mod/modpost.c
@@ -672,7 +672,7 @@ static void handle_modversions(struct mo
 			if (ELF_ST_TYPE(sym->st_info) == STT_SPARC_REGISTER)
 				break;
 			if (symname[0] == '.') {
-				char *munged = strdup(symname);
+				char *munged = NOFAIL(strdup(symname));
 				munged[0] = '_';
 				munged[1] = toupper(munged[1]);
 				symname = munged;





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