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Wed, 1 Mar 2023 19:52:59 +0100 From: Jean-Jacques Hiblot To: , , Geert Uytterhoeven , Magnus Damm , Russell King , Michael Ellerman , Nicholas Piggin , Christophe Leroy , , Daniel Lezcano , Thomas Gleixner , Claudiu Beznea , Marc Zyngier , , Manivannan Sadhasivam , Palmer Dabbelt , Paul Walmsley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Rob Herring , Frank Rowand , Bjorn Helgaas , Nishanth Menon , , , , , Subject: [PATCH 3/3] of: irq: release the node after looking up for "interrupts-extended" Date: Wed, 1 Mar 2023 19:52:09 +0100 Message-ID: <20230301185209.274134-4-jjhiblot@traphandler.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230301185209.274134-1-jjhiblot@traphandler.com> References: <20230301185209.274134-1-jjhiblot@traphandler.com> MIME-Version: 1.0 X-Originating-IP: [88.161.25.233] X-ClientProxiedBy: DAG3EX2.emp2.local (172.16.2.22) To DAG1EX1.emp2.local (172.16.2.1) X-Ovh-Tracer-Id: 11460535155466975612 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvhedrudelhedguddutdcutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkffojghfggfgtghisehtkeertdertddtnecuhfhrohhmpeflvggrnhdqlfgrtghquhgvshcujfhisghlohhtuceojhhjhhhisghlohhtsehtrhgrphhhrghnughlvghrrdgtohhmqeenucggtffrrghtthgvrhhnpeduteevleevvefggfdvueffffejhfehheeuiedtgedtjeeghfehueduudegfeefueenucfkphepuddvjedrtddrtddruddpkeekrdduiedurddvhedrvdeffeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduvdejrddtrddtrddupdhmrghilhhfrhhomhepoehjjhhhihgslhhothesthhrrghphhgrnhgulhgvrhdrtghomheqpdhnsggprhgtphhtthhopedupdhrtghpthhtohepshgrrhgrvhgrnhgrkhesghhoohhglhgvrdgtohhmpdhnmhesthhirdgtohhmpdhsshgrnhhtohhshheskhgvrhhnvghlrdhorhhgpdhmrghthhhirghsrdhnhihmrghnsehinhhtvghlrdgtohhmpdhgrhgvghhkhheslhhinhhugihfohhunhgurghtihhonhdrohhrghdpthhhihgvrhhrhidrrhgvughinhhgsehgmhgrihhlrdgtohhmpdhjohhnrghthhgrnhhhsehnvhhiughirgdrtghomhdplhhinhhugi dqrhgvnhgvshgrshdqshhotgesvhhgvghrrdhkvghrnhgvlhdrohhrghdplhhinhhugidqrghrmhdqkhgvrhhnvghlsehlihhsthhsrdhinhhfrhgruggvrggurdhorhhgpdhlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdplhhinhhugihpphgtqdguvghvsehlihhsthhsrdhoiihlrggsshdrohhrghdplhhinhhugidqfihirhgvlhgvshhssehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhlihhnuhigqdgrtghtihhonhhssehlihhsthhsrdhinhhfrhgruggvrggurdhorhhgpdhlihhnuhigqdhrihhstghvsehlihhsthhsrdhinhhfrhgruggvrggurdhorhhgpdhlihhnuhigqdhsuhhngihisehlihhsthhsrdhlihhnuhigrdguvghvpdguvghvihgtvghtrhgvvgesvhhgvghrrdhkvghrnhgvlhdrohhrghdplhhinhhugidqphgtihesvhhgvghrrdhkvghrnhgvlhdrohhrghdplhhinhhugidquhhssgesvhhgvghrrdhkvghrnhgvlhdrohhrghdpsghhvghlghgrrghssehgohhoghhlvgdrtghomhdpfhhrohifrghnugdrlhhishhtsehgmhgrihhlrdgtohhmpdhrohgshhdoughtsehkvghrnhgvlhdrohhrghdpshgrmhhuvghlsehshhholhhlrghnugdrohhrghdptghlvghmvghnthdrlhgvghgvrhessghoohhtlhhinhdrtghomhdpghgvvghrthdorhgvnhgvshgrshesghhlihguvghrrdgsvgdpmhgrghhnuhhsrdgurghmmhesghhmrghilhdrtghomhdplhhinhhugiesrghrmhhlihhnuhigrdh orhhgrdhukhdpmhhpvgesvghllhgvrhhmrghnrdhiugdrrghupdhnphhighhgihhnsehgmhgrihhlrdgtohhmpdgthhhrihhsthhophhhvgdrlhgvrhhohiestghsghhrohhuphdrvghupdiirghjvggtheesghhmrghilhdrtghomhdplhhinhhugidqthgvghhrrgesvhhgvghrrdhkvghrnhgvlhdrohhrghdpuggrnhhivghlrdhlvgiitggrnhhosehlihhnrghrohdrohhrghdptghlrghuughiuhdrsggviihnvggrsehmihgtrhhotghhihhprdgtohhmpdhmrgiisehkvghrnhgvlhdrohhrghdprghfrggvrhgsvghrsehsuhhsvgdruggvpdhmrghniheskhgvrhhnvghlrdhorhhgpdhprghlmhgvrhesuggrsggsvghlthdrtghomhdpphgruhhlrdifrghlmhhslhgvhiesshhifhhivhgvrdgtohhmpdifvghnshestghsihgvrdhorhhgpdhjvghrnhgvjhdrshhkrhgrsggvtgesghhmrghilhdrtghomhdpthhglhigsehlihhnuhhtrhhonhhigidruggvpdfovfetjfhoshhtpehmohehvdekpdhmohguvgepshhmthhpohhuth X-Mailman-Approved-At: Thu, 02 Mar 2023 15:09:14 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jean-Jacques Hiblot , linux-actions@lists.infradead.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" When of_parse_phandle_with_args() succeeds, a get() is performed on out_irq->np. And another get() is performed in of_irq_parse_raw(), resulting in the refcount being incremented twice. Fixing this by calling put() after of_irq_parse_raw(). Signed-off-by: Jean-Jacques Hiblot --- drivers/of/irq.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 95da943fcf075..244f240bc4ac4 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -349,8 +349,12 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar /* Try the new-style interrupts-extended first */ res = of_parse_phandle_with_args(device, "interrupts-extended", "#interrupt-cells", index, out_irq); - if (!res) - return of_irq_parse_raw(addr, out_irq); + if (!res) { + p = out_irq->np; + res = of_irq_parse_raw(addr, out_irq); + of_node_put(p); + return res; + } /* Look for the interrupt parent. */ p = of_irq_find_parent(device);