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ANDROID: dm: android-verity: fix table_make_digest() error handling

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If table_make_digest() fails, verify_verity_signature() would try to
pass the returned ERR_PTR() to kfree().

This fixes the smatch error:

drivers/md/dm-android-verity.c:601 verify_verity_signature() error: 'pks' dereferencing possible ERR_PTR()

Change-Id: I9b9b7764b538cb4a5f94337660e9b0f149b139be
Signed-off-by: Greg Hackmann <ghackmann@google.com>
This commit is contained in:
Greg Hackmann
2016-11-14 09:48:02 -08:00
committed by Amit Pundir
parent e5a34995d0
commit 6d2d31fe1b
1 changed files with 2 additions and 0 deletions
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2
drivers/md/dm-android-verity.c
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@@ -585,6 +585,8 @@ static int verify_verity_signature(char *key_id,
if (IS_ERR(pks)) {
DMERR("hashing failed");
retval = PTR_ERR(pks);
pks = NULL;
goto error;
}