From: Markus Elfring <Markus.Elfring@web.de>
To: linuxppc-dev@lists.ozlabs.org,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Jani Nikula <jani.nikula@intel.com>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Naveen N Rao <naveen@kernel.org>,
Nicholas Piggin <npiggin@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Thomas Zimmermann <tzimmermann@suse.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH] powermac: Call of_node_put(bk_node) only once in pmac_has_backlight_type()
Date: Wed, 2 Oct 2024 22:02:20 +0200 [thread overview]
Message-ID: <b7e69e04-e15c-41ec-b62b-37253debc654@web.de> (raw)
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 2 Oct 2024 21:50:27 +0200
An of_node_put(bk_node) call was immediately used after a pointer check
for an of_get_property() call in this function implementation.
Thus call such a function only once instead directly before the check.
This issue was transformed by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
arch/powerpc/platforms/powermac/backlight.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c
index 12bc01353bd3..d3666595a62e 100644
--- a/arch/powerpc/platforms/powermac/backlight.c
+++ b/arch/powerpc/platforms/powermac/backlight.c
@@ -61,11 +61,9 @@ int pmac_has_backlight_type(const char *type)
if (bk_node) {
const char *prop = of_get_property(bk_node,
"backlight-control", NULL);
- if (prop && strncmp(prop, type, strlen(type)) == 0) {
- of_node_put(bk_node);
- return 1;
- }
of_node_put(bk_node);
+ if (prop && strncmp(prop, type, strlen(type)) == 0)
+ return 1;
}
return 0;
--
2.46.1
next reply other threads:[~2024-10-02 21:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-02 20:02 Markus Elfring [this message]
2024-10-02 20:43 ` [PATCH] powermac: Call of_node_put(bk_node) only once in pmac_has_backlight_type() Christophe Leroy
2024-10-03 5:56 ` Dan Carpenter
2024-10-03 6:53 ` Krzysztof Kozlowski
2024-10-07 7:15 ` Markus Elfring
2024-10-09 4:48 ` [PATCH] " Michael Ellerman
2024-10-11 16:18 ` [PATCH] powermac: Use of_property_match_string() " Markus Elfring
2024-10-11 16:25 ` Christophe Leroy
2024-10-13 13:41 ` Dan Carpenter
2024-11-17 12:09 ` Michael Ellerman
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