From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1497733C1B6; Fri, 9 Jan 2026 12:15:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767960926; cv=none; b=JoyN+VLUYYeQbewP2AoUYait8j2602MA7Dms/ryvcB4CCBWBDeluAtd0cZxraHbWg5hRE0TFWNR74X+P1BOJyUmtuiwsQs6HIsgzJNNvRlw+pmga4IRcVfojykpsJwu6a4CqHflLlQr+Rtvi2k4479FfhdSFHFubgx+s/T+A8hI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767960926; c=relaxed/simple; bh=xQ6tL8KkfVMencHs0dB0X2gK4W5vnKR7hhufRCgcfdc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aPKJBnCSWSkdQ1IwYbEKAc5vcPxTtiKpM+bmk1Tv0+4pRsXScCn/XV9aPCmHTBI2adz6WEMLjopzdd+kmsgzqctxs4fHyXIm/IChxwbcwCbS17sFzl1KapVbjlDbCAKFFkY7YDo4FRqkX8YUzwI/n7h5rlE5lL+o7IZRIFWI9zQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=hrhnv2Zc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="hrhnv2Zc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4444CC4CEF1; Fri, 9 Jan 2026 12:15:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767960925; bh=xQ6tL8KkfVMencHs0dB0X2gK4W5vnKR7hhufRCgcfdc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hrhnv2ZcSSDo4yfxC0NbP7aJJuv/81SFPU8B5Vj9ZctY697Xk+I8CzQh63CYPZ1oX mtWpBV3Ou1+rFwMjeZj7hK26A4Qu3zI72/1ThmobFFFzC4R0sfgIz23Ra7DSxe26rx 4bEs/bRV3vn6Gnqlknf7PMds/qJpKbd83X4ccynQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Christian Hitz , Jacek Anaszewski , Lee Jones Subject: [PATCH 6.6 566/737] leds: leds-lp50xx: Allow LED 0 to be added to module bank Date: Fri, 9 Jan 2026 12:41:45 +0100 Message-ID: <20260109112155.294193787@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260109112133.973195406@linuxfoundation.org> References: <20260109112133.973195406@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Christian Hitz commit 26fe74d598c32e7bc6f150edfc4aa43e1bee55db upstream. led_banks contains LED module number(s) that should be grouped into the module bank. led_banks is 0-initialized. By checking the led_banks entries for 0, un-set entries are detected. But a 0-entry also indicates that LED module 0 should be grouped into the module bank. By only iterating over the available entries no check for unused entries is required and LED module 0 can be added to bank. Cc: stable@vger.kernel.org Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver") Signed-off-by: Christian Hitz Reviewed-by: Jacek Anaszewski Link: https://patch.msgid.link/20251008123222.1117331-1-christian@klarinett.li Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman --- drivers/leds/leds-lp50xx.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) --- a/drivers/leds/leds-lp50xx.c +++ b/drivers/leds/leds-lp50xx.c @@ -346,17 +346,15 @@ out: return ret; } -static int lp50xx_set_banks(struct lp50xx *priv, u32 led_banks[]) +static int lp50xx_set_banks(struct lp50xx *priv, u32 led_banks[], int num_leds) { u8 led_config_lo, led_config_hi; u32 bank_enable_mask = 0; int ret; int i; - for (i = 0; i < priv->chip_info->max_modules; i++) { - if (led_banks[i]) - bank_enable_mask |= (1 << led_banks[i]); - } + for (i = 0; i < num_leds; i++) + bank_enable_mask |= (1 << led_banks[i]); led_config_lo = bank_enable_mask; led_config_hi = bank_enable_mask >> 8; @@ -412,7 +410,7 @@ static int lp50xx_probe_leds(struct fwno return ret; } - ret = lp50xx_set_banks(priv, led_banks); + ret = lp50xx_set_banks(priv, led_banks, num_leds); if (ret) { dev_err(priv->dev, "Cannot setup banked LEDs\n"); return ret;