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Tue, 25 Feb 2025 03:39:52 -0800 (PST) From: Cosmin Tanislav <demonsingur@gmail.com> To: Cc: Romain Gantois <romain.gantois@bootlin.com>, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>, Luca Ceresoli <luca.ceresoli@bootlin.com>, Wolfram Sang <wsa+renesas@sang-engineering.com>, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Cosmin Tanislav <demonsingur@gmail.com> Subject: [PATCH v2 5/9] i2c: atr: do not create mapping in detach_addr() Date: Tue, 25 Feb 2025 13:39:33 +0200 Message-ID: <20250225113939.49811-6-demonsingur@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250225113939.49811-1-demonsingur@gmail.com> References: <20250225113939.49811-1-demonsingur@gmail.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: <linux-i2c.vger.kernel.org> List-Subscribe: <mailto:linux-i2c+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-i2c+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit |
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[v2,1/9] i2c: atr: Fix lockdep for nested ATRs
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diff --git a/drivers/i2c/i2c-atr.c b/drivers/i2c/i2c-atr.c index 9c4e9e8ec802..b62aa6ae452e 100644 --- a/drivers/i2c/i2c-atr.c +++ b/drivers/i2c/i2c-atr.c @@ -586,10 +586,8 @@ static void i2c_atr_detach_addr(struct i2c_adapter *adapter, mutex_lock(&chan->alias_pairs_lock); - c2a = i2c_atr_get_mapping_by_addr(chan, addr); + c2a = i2c_atr_find_mapping_by_addr(chan, addr); if (!c2a) { - /* This should never happen */ - dev_warn(atr->dev, "Unable to find address mapping\n"); mutex_unlock(&chan->alias_pairs_lock); return; }
It is useless to create a new mapping just to detach it immediately. Use the newly added i2c_atr_find_mapping_by_addr() function to avoid it, and exit without logging an error if not found. Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com> --- drivers/i2c/i2c-atr.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)