diff mbox series

[v9,12/12] tpm, tpm_tis: Enable interrupt test

Message ID 20221110152533.24243-13-LinoSanfilippo@gmx.de (mailing list archive)
State New
Headers show
Series TPM IRQ fixes | expand

Commit Message

Lino Sanfilippo Nov. 10, 2022, 3:25 p.m. UTC
From: Lino Sanfilippo <l.sanfilippo@kunbus.com>

The test for interrupts in tpm_tis_send() is skipped if the flag
TPM_CHIP_FLAG_IRQ is not set. Since the current code never sets the flag
initially the test is never executed.

Fix this by setting the flag in tpm_tis_gen_interrupt() right after
interrupts have been enabled and before the test is executed.

Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
---
 drivers/char/tpm/tpm_tis_core.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Lino Sanfilippo Nov. 14, 2022, 1:35 p.m. UTC | #1
On 10.11.22 16:25, Lino Sanfilippo wrote:
> From: Lino Sanfilippo <l.sanfilippo@kunbus.com>
>
> The test for interrupts in tpm_tis_send() is skipped if the flag
> TPM_CHIP_FLAG_IRQ is not set. Since the current code never sets the flag
> initially the test is never executed.
>
> Fix this by setting the flag in tpm_tis_gen_interrupt() right after
> interrupts have been enabled and before the test is executed.
>
> Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
> ---
>  drivers/char/tpm/tpm_tis_core.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
> index 469a1db95941..1f78582264eb 100644
> --- a/drivers/char/tpm/tpm_tis_core.c
> +++ b/drivers/char/tpm/tpm_tis_core.c
> @@ -793,6 +793,8 @@ static int tpm_tis_gen_interrupt(struct tpm_chip *chip)
>  	if (ret < 0)
>  		return ret;
>
> +	chip->flags |= TPM_CHIP_FLAG_IRQ;
> +
>  	if (chip->flags & TPM_CHIP_FLAG_TPM2)
>  		ret = tpm2_get_tpm_pt(chip, 0x100, &cap2, desc);
>  	else

Please ignore this patch. I will send another version in a v10 of this series.

Regards,
Lino
diff mbox series

Patch

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 469a1db95941..1f78582264eb 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -793,6 +793,8 @@  static int tpm_tis_gen_interrupt(struct tpm_chip *chip)
 	if (ret < 0)
 		return ret;
 
+	chip->flags |= TPM_CHIP_FLAG_IRQ;
+
 	if (chip->flags & TPM_CHIP_FLAG_TPM2)
 		ret = tpm2_get_tpm_pt(chip, 0x100, &cap2, desc);
 	else