Ehlo,
Coverity found a memory leak in tpm_ascii_bios_measurements_open().
If "read_log(log)" fails, then we may leak 'log' and
'log->bios_event_log'.
This patch should fix it, but please double check it. I don't know
this code very well and the patch has only been compile tested.
Signed-off-by: Jesper Juhl <[email protected]>
---
drivers/char/tpm/tpm_bios.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c
index 4eba32b..4b26ce4 100644
--- a/drivers/char/tpm/tpm_bios.c
+++ b/drivers/char/tpm/tpm_bios.c
@@ -427,7 +427,7 @@ static int tpm_ascii_bios_measurements_open(struct inode *inode,
return -ENOMEM;
if ((err = read_log(log)))
- return err;
+ goto out_free;
/* now register seq file */
err = seq_open(file, &tpm_ascii_b_measurments_seqops);
@@ -435,10 +435,15 @@ static int tpm_ascii_bios_measurements_open(struct inode *inode,
seq = file->private_data;
seq->private = log;
} else {
- kfree(log->bios_event_log);
- kfree(log);
+ goto out_free;
}
+
+out:
return err;
+out_free:
+ kfree(log->bios_event_log);
+ kfree(log);
+ goto out;
}
const struct file_operations tpm_ascii_bios_measurements_ops = {
-
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