From 7f326ed7ff221a109bf89288bf6c8f0142e3e75c Mon Sep 17 00:00:00 2001 From: Stefan Berger Date: Fri, 11 Nov 2011 12:57:05 -0500 Subject: [PATCH] tpm_tis: Check return code from getting timeouts/durations Check the return code from getting the TPM's timeouts and durations and reject the driver if they could not be read. Signed-off-by: Stefan Berger --- drivers/char/tpm/tpm_tis.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index d30d5c3..34832bc7 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -614,7 +614,11 @@ static int tpm_tis_init(struct device *dev, resource_size_t start, dev_dbg(dev, "\tData Avail Int Support\n"); /* get the timeouts before testing for irqs */ - tpm_get_timeouts(chip); + if (tpm_get_timeouts(chip)) { + dev_err(dev, "Could not get TPM timeouts and durations\n"); + rc = -ENODEV; + goto out_err; + } if (tpm_do_selftest(chip)) { dev_err(dev, "TPM self test failed\n"); -- 2.7.4