[PATCH] input/misc: wistron_btns: disable on UML

[Randy Dunlap]

The wistron_btns driver calls rtc_cmos_read(), which isn't
available with UML builds, so disable this driver on UML.

Prevents this build error:

ld: drivers/input/misc/wistron_btns.o: in function `poll_bios':
wistron_btns.c:(.text+0x4be): undefined reference to `rtc_cmos_read'

Fixes: 0bbadafdc49d ("um: allow disabling NO_IOMEM") # v5.14+
Signed-off-by: Randy Dunlap <rdunlap at infradead.org>
Cc: Johannes Berg <johannes.berg at intel.com>
Cc: Richard Weinberger <richard at nod.at>
Cc: Dmitry Torokhov <dmitry.torokhov at gmail.com>
Cc: Miloslav Trmac <mitr at volny.cz>
Cc: linux-input at vger.kernel.org
Cc: linux-um at lists.infradead.org
---
 drivers/input/misc/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -- a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -330,7 +330,7 @@ config INPUT_CPCAP_PWRBUTTON
 
 config INPUT_WISTRON_BTNS
 	tristate "x86 Wistron laptop button interface"
-	depends on X86_32
+	depends on X86_32 && !UML
 	select INPUT_SPARSEKMAP
 	select NEW_LEDS
 	select LEDS_CLASS