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env: Fix warning when forcing environment without ENV_ACCESS_IGNORE_FORCE

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Since commit 0f036bf4b8 ("env: Warn on force access if ENV_ACCESS_IGNORE_FORCE set")
a warning message is displayed when setenv -f is used WITHOUT
CONFIG_ENV_ACCESS_IGNORE_FORCE, but the variable is set anyway, resulting
in lots of log pollution.

env_flags_validate() returns 0 if the access is accepted, or non zero
if it is refused.

So the original code
	#ifndef CONFIG_ENV_ACCESS_IGNORE_FORCE
		if (flag & H_FORCE)
			return 0;
	#endif

was correct, it returns 0 (accepts the modification) if forced UNLESS
IGNORE_FORCE is set (in which case access checks in the following code
are applied). The broken patch just added a printf to the force accepted
case.

To obtain the intent of the patch we need this:
	if (flag & H_FORCE) {
	#ifdef CONFIG_ENV_ACCESS_IGNORE_FORCE
		printf("## Error: Can't force access to \"%s\"\n", name);
	#else
		return 0;
	#endif
	}

Fixes: 0f036bf4b8 ("env: Warn on force access if ENV_ACCESS_IGNORE_FORCE set")

Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
This commit is contained in:
Martin Fuzzey 2021-01-11 11:27:20 +01:00 committed by Tom Rini
parent b9c3052fbb
commit 9636bf8b2e
1 changed files with 3 additions and 2 deletions
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5
env/flags.c vendored
View file

@ -563,12 +563,13 @@ int env_flags_validate(const struct env_entry *item, const char *newval,
return 1;
#endif
#ifndef CONFIG_ENV_ACCESS_IGNORE_FORCE
if (flag & H_FORCE) {
#ifdef CONFIG_ENV_ACCESS_IGNORE_FORCE
printf("## Error: Can't force access to \"%s\"\n", name);
#else
return 0;
}
#endif
}
switch (op) {
case env_op_delete:
if (item->flags & ENV_FLAGS_VARACCESS_PREVENT_DELETE) {