From: Andreas Larsson <andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
To: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: software-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org,
Linus Walleij
<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Subject: [PATCH v2 1/6] of: Return -EEXIST from of_parse_phandle_with_args for holes in phandle list
Date: Tue, 29 Jan 2013 15:53:38 +0100 [thread overview]
Message-ID: <1359471223-4794-2-git-send-email-andreas@gaisler.com> (raw)
In-Reply-To: <1359471223-4794-1-git-send-email-andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
Return value for an empty phandle was -EEXIST before commit 15c9a0ac, that
changed the return value in this case to -ENOENT. However, of_gpio_named_count
relies upon the return value to be -EEXIST and relies upon being able to
distinguish this case from the case of no list at all which also returns
-ENOENT.
Also change the of selftest to expect -EEXIST in this case.
Signed-off-by: Andreas Larsson <andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
---
I have only compile tested the selftest, not having appropriate hardware around for running it.
drivers/of/base.c | 4 ++--
drivers/of/selftest.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 2390ddb..986afd7 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1083,11 +1083,11 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
* All of the error cases above bail out of the loop, so at
* this point, the parsing is successful. If the requested
* index matches, then fill the out_args structure and return,
- * or return -ENOENT for an empty entry.
+ * or return -EEXIST for an empty entry.
*/
if (cur_index == index) {
if (!phandle)
- return -ENOENT;
+ return -EEXIST;
if (out_args) {
int i;
diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c
index f24ffd7..b1c2ae9 100644
--- a/drivers/of/selftest.c
+++ b/drivers/of/selftest.c
@@ -54,7 +54,7 @@ static void __init of_selftest_parse_phandle_with_args(void)
passed &= (args.args[1] == 0);
break;
case 2:
- passed &= (rc == -ENOENT);
+ passed &= (rc == -EEXIST);
break;
case 3:
passed &= !rc;
--
1.7.0.4
------------------------------------------------------------------------------
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next prev parent reply other threads:[~2013-01-29 14:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-29 14:53 [PATCH v2 0/6] of, of_gpio, of_spi: Bugfix and improve of_parse_phandle_with_args, of_gpio_named_count and of_spi_register_master Andreas Larsson
[not found] ` <1359471223-4794-1-git-send-email-andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
2013-01-29 14:53 ` Andreas Larsson [this message]
2013-01-29 14:53 ` [PATCH v2 2/6] of: Return -ENXIO from of_parse_phandle_with_args for too large index and return errors from of_gpio_named_count Andreas Larsson
[not found] ` <1359471223-4794-3-git-send-email-andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
2013-02-01 9:37 ` Linus Walleij
2013-02-10 23:56 ` Grant Likely
2013-01-29 14:53 ` [PATCH v2 3/6] of_spi: Initialize cs_gpios properly Andreas Larsson
2013-02-11 0:00 ` Grant Likely
2013-01-29 14:53 ` [PATCH v2 4/6] of_spi: Document cs_gpios and cs_gpio in kernel-doc Andreas Larsson
[not found] ` <1359471223-4794-5-git-send-email-andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
2013-02-11 0:06 ` Grant Likely
2013-01-29 14:53 ` [PATCH v2 5/6] of_spi: Add fetching of of_gpio flags to of_spi_register_master Andreas Larsson
2013-02-11 0:22 ` Grant Likely
2013-02-12 9:39 ` Andreas Larsson
2013-02-12 17:09 ` Grant Likely
2013-01-29 14:53 ` [PATCH v2 6/6] of_spi: Initialize cs_gpios and cs_gpio with -EEXIST Andreas Larsson
2013-02-11 0:23 ` Grant Likely
2013-02-12 9:46 ` Andreas Larsson
2013-02-12 18:01 ` Grant Likely
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