diff options
| author | Vasily Averin <vvs@virtuozzo.com> | 2020-06-13 17:18:33 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2020-07-02 17:49:00 +0300 |
| commit | ccf6fb858e17a8f8a914a1c6444d277cfedfeae6 (patch) | |
| tree | a9f693aa1d58d7b254ca882f0251a45d4d3a58ed /drivers/char | |
| parent | eac9347d932b96c09f089ac0673ebe588983e59b (diff) | |
| download | linux-ccf6fb858e17a8f8a914a1c6444d277cfedfeae6.tar.bz2 | |
tpm_tis: extra chip->ops check on error path in tpm_tis_core_init
Found by smatch:
drivers/char/tpm/tpm_tis_core.c:1088 tpm_tis_core_init() warn:
variable dereferenced before check 'chip->ops' (see line 979)
'chip->ops' is assigned in the beginning of function
in tpmm_chip_alloc->tpm_chip_alloc
and is used before first possible goto to error path.
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/tpm/tpm_tis_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c index 2435216bd10a..65ab1b027949 100644 --- a/drivers/char/tpm/tpm_tis_core.c +++ b/drivers/char/tpm/tpm_tis_core.c @@ -1085,7 +1085,7 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq, return 0; out_err: - if ((chip->ops != NULL) && (chip->ops->clk_enable != NULL)) + if (chip->ops->clk_enable != NULL) chip->ops->clk_enable(chip, false); tpm_tis_remove(chip); |