[PATCH 3/3] tpm_tis / PM: Fix unused function warning for CONFIG_PM_SLEEP

["Rafael J. Wysocki" <rjw@xxxxxxx>]

According to a compiler warning, the tpm_tis_resume() function is not
used for CONFIG_PM_SLEEP unset, so add a #ifdef to prevent it from
being built in that case.

Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
---
 drivers/char/tpm/tpm_tis.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux/drivers/char/tpm/tpm_tis.c
===================================================================
--- linux.orig/drivers/char/tpm/tpm_tis.c
+++ linux/drivers/char/tpm/tpm_tis.c
@@ -807,6 +807,7 @@ module_param_string(hid, tpm_pnp_tbl[TIS
 MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
 #endif
 
+#ifdef CONFIG_PM_SLEEP
 static int tpm_tis_resume(struct device *dev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);
@@ -816,6 +817,7 @@ static int tpm_tis_resume(struct device
 
 	return tpm_pm_resume(dev);
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(tpm_tis_pm, tpm_pm_suspend, tpm_tis_resume);
 

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