[PATCH] mips: vdso: fix uninitialized warning for genvdso

["Michael C. Pratt" <mcpratt@pm.me>]

On older versions of GCC such as GCC 10.2.1,
it is possible that a "maybe-uninitialized" warning is triggered
for the pointer variables in the header's inline functions
when all warnings are enabled.

Resolve this warning by initializing all the pointers to NULL.

Signed-off-by: Michael C. Pratt <mcpratt@pm.me>
---
 arch/mips/vdso/genvdso.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/mips/vdso/genvdso.h b/arch/mips/vdso/genvdso.h
index 9bfb874038b0..112f51e2e546 100644
--- a/arch/mips/vdso/genvdso.h
+++ b/arch/mips/vdso/genvdso.h
@@ -7,9 +7,9 @@
 static inline bool FUNC(patch_vdso)(const char *path, void *vdso)
 {
 	const ELF(Ehdr) *ehdr = vdso;
-	void *shdrs;
-	ELF(Shdr) *shdr;
-	char *shstrtab, *name;
+	void *shdrs = NULL;
+	ELF(Shdr) *shdr = NULL;
+	char *shstrtab = NULL, *name = NULL;
 	uint16_t sh_count, sh_entsize, i;
 
 	shdrs = vdso + FUNC(swap_uint)(ehdr->e_shoff);
@@ -58,10 +58,10 @@ static inline bool FUNC(patch_vdso)(const char *path, void *vdso)
 static inline bool FUNC(get_symbols)(const char *path, void *vdso)
 {
 	const ELF(Ehdr) *ehdr = vdso;
-	void *shdrs, *symtab;
-	ELF(Shdr) *shdr;
-	const ELF(Sym) *sym;
-	char *strtab, *name;
+	void *shdrs = NULL, *symtab = NULL;
+	ELF(Shdr) *shdr = NULL;
+	const ELF(Sym) *sym = NULL;
+	char *strtab = NULL, *name = NULL;
 	uint16_t sh_count, sh_entsize, st_count, st_entsize, i, j;
 	uint64_t offset;
 	uint32_t flags;
-- 
2.30.2