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| author | Stefan Berger <stefanb@linux.vnet.ibm.com> | 2011-11-11 12:57:05 -0500 |
|---|---|---|
| committer | Rajiv Andrade <srajiv@linux.vnet.ibm.com> | 2011-11-16 09:43:01 -0200 |
| commit | 7f326ed7ff221a109bf89288bf6c8f0142e3e75c (patch) | |
| tree | 89e3901917831a53cd3e8c805c9984e9ba5a5f60 /drivers/char/tpm/tpm_tis.c | |
| parent | 68d6e6713fcb2ea6278661aaaf5f1c9c821b3751 (diff) | |
| download | linux-7f326ed7ff221a109bf89288bf6c8f0142e3e75c.tar.gz linux-7f326ed7ff221a109bf89288bf6c8f0142e3e75c.tar.bz2 linux-7f326ed7ff221a109bf89288bf6c8f0142e3e75c.zip | |
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 <stefanb@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/char/tpm/tpm_tis.c')
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index d30d5c3c6c02..34832bc74649 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"); |