[PATCH] eepc-wmi.c: Fix build error

[Ingo Molnar]

-tip testing found:

eeepc-wmi.c:(.text+0x36673c): undefined reference to `sparse_keymap_report_event'
drivers/built-in.o: In function `eeepc_wmi_init':
eeepc-wmi.c:(.init.text+0x19cd0): undefined reference to `sparse_keymap_setup'
eeepc-wmi.c:(.init.text+0x19cf0): undefined reference to `sparse_keymap_free'
eeepc-wmi.c:(.init.text+0x19d0b): undefined reference to `sparse_keymap_free'
drivers/built-in.o: In function `eeepc_wmi_exit':
eeepc-wmi.c:(.exit.text+0x2e87): undefined reference to `sparse_keymap_free'

To fix this select INPUT_SPARSEKMAP, like the ASUS driver does.

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 drivers/platform/x86/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 3046776..301e379 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -392,6 +392,7 @@ config EEEPC_WMI
 	depends on ACPI_WMI
 	depends on INPUT
 	depends on EXPERIMENTAL
+	select INPUT_SPARSEKMAP
 	---help---
 	  Say Y here if you want to support WMI-based hotkeys on Eee PC laptops.
 
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