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dm verity: correcting logic used with corrupted_errs counter

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Current logic on handling corrupted_errs countes is not considering
DM_VERITY_MAX_CORRUPTED_ERRS limit so correcting the logic.

Change-Id: Ide3f3e6b9d8bec8f02cbb5a72b7d0935bcd87826
Signed-off-by: Ravi Kumar Siddojigari <rsiddoji@codeaurora.org>
This commit is contained in:
Ravi Kumar Siddojigari 2020-11-18 13:15:14 +05:30
commit b649934e08
1 changed files with 7 additions and 3 deletions
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10
drivers/md/dm-verity-target.c
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@ -220,8 +220,10 @@ static int verity_handle_err(struct dm_verity *v, enum verity_block_type type,
/* Corruption should be visible in device status in all modes */
v->hash_failed = 1;
if (v->corrupted_errs >= DM_VERITY_MAX_CORRUPTED_ERRS)
if (v->corrupted_errs >= DM_VERITY_MAX_CORRUPTED_ERRS) {
DMERR("%s: reached maximum errors", v->data_dev->name);
goto out;
}
v->corrupted_errs++;
@ -239,14 +241,16 @@ static int verity_handle_err(struct dm_verity *v, enum verity_block_type type,
DMERR_LIMIT("%s: %s block %llu is corrupted", v->data_dev->name,
type_str, block);
if (v->corrupted_errs == DM_VERITY_MAX_CORRUPTED_ERRS)
DMERR("%s: reached maximum errors", v->data_dev->name);
snprintf(verity_env, DM_VERITY_ENV_LENGTH, "%s=%d,%llu",
DM_VERITY_ENV_VAR_NAME, type, block);
kobject_uevent_env(&disk_to_dev(dm_disk(md))->kobj, KOBJ_CHANGE, envp);
/* corrupted_errs count had not reached limits */
return 0;
out:
if (v->mode == DM_VERITY_MODE_LOGGING)
return 0;