Using the device of_node property is a better way to refer to the
device tree node rather than of_find_node_by_name().
Suggested-by: Jason Gunthorpe <jguntho...@obsidianresearch.com>
Signed-off-by: Nayna Jain <na...@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
---
drivers/char/tpm/tpm_of.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/char/tpm/tpm_of.c b/drivers/char/tpm/tpm_of.c
index 7c30752..22b8f81 100644
--- a/drivers/char/tpm/tpm_of.c
+++ b/drivers/char/tpm/tpm_of.c
@@ -29,7 +29,8 @@ int read_log_of(struct tpm_chip *chip)
struct tpm_bios_log *log;
log = &chip->log;
- np = of_find_node_by_name(NULL, "vtpm");
+ if (chip->dev.parent->of_node)
+ np = chip->dev.parent->of_node;
if (!np) {
pr_err("%s: ERROR - IBMVTPM not supported\n", __func__);
return -ENODEV;
@@ -55,18 +56,15 @@ int read_log_of(struct tpm_chip *chip)
if (!log->bios_event_log) {
pr_err("%s: ERROR - Not enough memory for BIOS measurements\n",
__func__);
- of_node_put(np);
return -ENOMEM;
}
log->bios_event_log_end = log->bios_event_log + *sizep;
memcpy(log->bios_event_log, __va(*basep), *sizep);
- of_node_put(np);
return 0;
cleanup_eio:
- of_node_put(np);
return -EIO;
}
--
2.5.0
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