From: "Marek Behún" <kabel@kernel.org>
To: "Simon Glass" <sjg@chromium.org>, "Pali Rohár" <pali@kernel.org>
Cc: u-boot@lists.denx.de, "Marek Behún" <marek.behun@nic.cz>
Subject: [PATCH v2 02/12] env: Fix env_get() when returning empty string using env_get_f()
Date: Thu, 4 Nov 2021 00:23:22 +0100 [thread overview]
Message-ID: <20211103232332.2737-3-kabel@kernel.org> (raw)
In-Reply-To: <20211103232332.2737-1-kabel@kernel.org>
From: Marek Behún <marek.behun@nic.cz>
The env_get_f() function returns -1 on failure. Returning 0 means that
the variable exists, and is empty string.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
env/common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/env/common.c b/env/common.c
index 2aa23545ba..757c5f9ecd 100644
--- a/env/common.c
+++ b/env/common.c
@@ -125,7 +125,7 @@ char *env_get(const char *name)
}
/* restricted capabilities before import */
- if (env_get_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0)
+ if (env_get_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) >= 0)
return (char *)(gd->env_buf);
return NULL;
--
2.32.0
next prev parent reply other threads:[~2021-11-03 23:24 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-03 23:23 [PATCH v2 00/12] Board specific runtime determined default env Marek Behún
2021-11-03 23:23 ` [PATCH v2 01/12] env: Don't set ready flag if import failed in env_set_default() Marek Behún
2021-11-14 0:34 ` Simon Glass
2021-11-03 23:23 ` Marek Behún [this message]
2021-11-14 0:34 ` [PATCH v2 02/12] env: Fix env_get() when returning empty string using env_get_f() Simon Glass
2021-11-03 23:23 ` [PATCH v2 03/12] env: Simplify env_get_default() Marek Behún
2021-11-14 0:34 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 04/12] sysinfo: Make sysinfo_get_str() behave like snprintf() Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-05 11:19 ` Marek Behún
2021-11-05 16:12 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 05/12] test: Use ut_asserteq_str() instead of ut_assertok(strcmp()) Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 06/12] sysinfo: Add get_str_list() method Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-05 11:20 ` Marek Behún
2021-11-05 16:12 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 07/12] sysinfo: Make .detect() non-mandatory Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 08/12] sysinfo: Add support for iterating string list Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-05 11:24 ` Marek Behún
2021-11-05 16:12 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 09/12] env: Change return behaviour of env_set_default_vars() Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 10/12] env: Add support for overwriting default environment via sysinfo Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-03 23:23 ` [PATCH v2 11/12] arm: mvebu: Espressobin: Use new API for setting default env at runtime Marek Behún
2021-11-05 2:02 ` Simon Glass
2021-11-05 8:50 ` Pali Rohár
2021-11-09 15:37 ` Pali Rohár
2021-11-03 23:23 ` [PATCH v2 12/12] env: Remove support for read-write default_environment[] Marek Behún
2021-11-05 2:02 ` Simon Glass
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211103232332.2737-3-kabel@kernel.org \
--to=kabel@kernel.org \
--cc=marek.behun@nic.cz \
--cc=pali@kernel.org \
--cc=sjg@chromium.org \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox