From: Christophe Leroy christophe.leroy@csgroup.eu
commit e963b7a28b2bf2416304e1a15df967fcf662aff5 upstream.
There are other clocks than the standard ones, for instance per process clocks. Therefore, being above the last standard clock doesn't mean it is a bad clock. So, fallback to syscall instead of returning -EINVAL inconditionaly.
Fixes: e33ffc956b08 ("powerpc/vdso32: implement clock_getres entirely") Cc: stable@vger.kernel.org # v5.6+ Reported-by: Aurelien Jarno aurelien@aurel32.net Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Signed-off-by: Michael Ellerman mpe@ellerman.id.au Tested-by: Aurelien Jarno aurelien@aurel32.net Link: https://lore.kernel.org/r/7316a9e2c0c2517923eb4b0411c4a08d15e675a4.158901728... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/kernel/vdso32/gettimeofday.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S index a3951567118a..e7f8f9f1b3f4 100644 --- a/arch/powerpc/kernel/vdso32/gettimeofday.S +++ b/arch/powerpc/kernel/vdso32/gettimeofday.S @@ -218,11 +218,11 @@ V_FUNCTION_BEGIN(__kernel_clock_getres) blr
/* - * invalid clock + * syscall fallback */ 99: - li r3, EINVAL - crset so + li r0,__NR_clock_getres + sc blr .cfi_endproc V_FUNCTION_END(__kernel_clock_getres)