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path: root/drivers/char/tpm/tpm_tis_core.c
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Diffstat (limited to 'drivers/char/tpm/tpm_tis_core.c')
-rw-r--r--drivers/char/tpm/tpm_tis_core.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 27c6ca031e23..2435216bd10a 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -433,6 +433,9 @@ static void disable_interrupts(struct tpm_chip *chip)
u32 intmask;
int rc;
+ if (priv->irq == 0)
+ return;
+
rc = tpm_tis_read32(priv, TPM_INT_ENABLE(priv->locality), &intmask);
if (rc < 0)
intmask = 0;
@@ -1062,9 +1065,12 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
if (irq) {
tpm_tis_probe_irq_single(chip, intmask, IRQF_SHARED,
irq);
- if (!(chip->flags & TPM_CHIP_FLAG_IRQ))
+ if (!(chip->flags & TPM_CHIP_FLAG_IRQ)) {
dev_err(&chip->dev, FW_BUG
"TPM interrupt not working, polling instead\n");
+
+ disable_interrupts(chip);
+ }
} else {
tpm_tis_probe_irq(chip, intmask);
}