From: Christophe JAILLET <christophe.jail...@wanadoo.fr> Reference to the 'np' node is dropped before dereferencing the 'sizep' and 'basep' pointers, which could by then point to junk if the node has been freed.
Refactor code to call 'of_node_put' later. Fixes: c5df39262dd5 ("drivers/char/tpm: Add securityfs support for event log") Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr> Reviewed-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com> --- drivers/char/tpm/tpm_of.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm_of.c b/drivers/char/tpm/tpm_of.c index 1141456..570f30c 100644 --- a/drivers/char/tpm/tpm_of.c +++ b/drivers/char/tpm/tpm_of.c @@ -53,17 +53,18 @@ int read_log(struct tpm_bios_log *log) goto cleanup_eio; } - of_node_put(np); log->bios_event_log = kmalloc(*sizep, GFP_KERNEL); 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; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/