Hello, On 4.10.2017 12:06, Julia Lawall wrote: > Hello, > > It seems that an unlock is missing on line 764. Yes, this is true. I'll add an unlock there. Thank you for noticing this. Best regards, Todor > > julia > > ---------- Forwarded message ---------- > Date: Wed, 4 Oct 2017 05:59:09 +0800 > From: kbuild test robot <fengguang.wu@xxxxxxxxx> > To: kbuild@xxxxxx > Cc: Julia Lawall <julia.lawall@xxxxxxx> > Subject: Re: [PATCH] [media] ov5645: I2C address change > > CC: kbuild-all@xxxxxx > In-Reply-To: <1506950925-13924-1-git-send-email-todor.tomov@xxxxxxxxxx> > TO: Todor Tomov <todor.tomov@xxxxxxxxxx> > CC: mchehab@xxxxxxxxxx, sakari.ailus@xxxxxxxxxxxxxxx, hansverk@xxxxxxxxx, linux-media@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Todor Tomov <todor.tomov@xxxxxxxxxx> > CC: linux-media@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Todor Tomov <todor.tomov@xxxxxxxxxx> > > Hi Todor, > > [auto build test WARNING on linuxtv-media/master] > [also build test WARNING on v4.14-rc3 next-20170929] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Todor-Tomov/ov5645-I2C-address-change/20171003-234231 > base: git://linuxtv.org/media_tree.git master > :::::: branch date: 6 hours ago > :::::: commit date: 6 hours ago > >>> drivers/media/i2c/ov5645.c:806:1-7: preceding lock on line 760 > > # https://github.com/0day-ci/linux/commit/c222075023642217170e2ef95f48efef079f9bcd > git remote add linux-review https://github.com/0day-ci/linux > git remote update linux-review > git checkout c222075023642217170e2ef95f48efef079f9bcd > vim +806 drivers/media/i2c/ov5645.c > > 9cae9722 Todor Tomov 2017-04-11 747 > 9cae9722 Todor Tomov 2017-04-11 748 static int ov5645_s_power(struct v4l2_subdev *sd, int on) > 9cae9722 Todor Tomov 2017-04-11 749 { > 9cae9722 Todor Tomov 2017-04-11 750 struct ov5645 *ov5645 = to_ov5645(sd); > 9cae9722 Todor Tomov 2017-04-11 751 int ret = 0; > 9cae9722 Todor Tomov 2017-04-11 752 > 9cae9722 Todor Tomov 2017-04-11 753 mutex_lock(&ov5645->power_lock); > 9cae9722 Todor Tomov 2017-04-11 754 > 9cae9722 Todor Tomov 2017-04-11 755 /* If the power count is modified from 0 to != 0 or from != 0 to 0, > 9cae9722 Todor Tomov 2017-04-11 756 * update the power state. > 9cae9722 Todor Tomov 2017-04-11 757 */ > 9cae9722 Todor Tomov 2017-04-11 758 if (ov5645->power_count == !on) { > 9cae9722 Todor Tomov 2017-04-11 759 if (on) { > c2220750 Todor Tomov 2017-10-02 @760 mutex_lock(&ov5645_lock); > c2220750 Todor Tomov 2017-10-02 761 > 9cae9722 Todor Tomov 2017-04-11 762 ret = ov5645_set_power_on(ov5645); > 9cae9722 Todor Tomov 2017-04-11 763 if (ret < 0) > 9cae9722 Todor Tomov 2017-04-11 764 goto exit; > 9cae9722 Todor Tomov 2017-04-11 765 > c2220750 Todor Tomov 2017-10-02 766 ret = ov5645_write_reg_to(ov5645, 0x3100, > c2220750 Todor Tomov 2017-10-02 767 ov5645->i2c_client->addr, 0x78); > c2220750 Todor Tomov 2017-10-02 768 if (ret < 0) { > c2220750 Todor Tomov 2017-10-02 769 dev_err(ov5645->dev, > c2220750 Todor Tomov 2017-10-02 770 "could not change i2c address\n"); > c2220750 Todor Tomov 2017-10-02 771 ov5645_set_power_off(ov5645); > c2220750 Todor Tomov 2017-10-02 772 mutex_unlock(&ov5645_lock); > c2220750 Todor Tomov 2017-10-02 773 goto exit; > c2220750 Todor Tomov 2017-10-02 774 } > c2220750 Todor Tomov 2017-10-02 775 > c2220750 Todor Tomov 2017-10-02 776 mutex_unlock(&ov5645_lock); > c2220750 Todor Tomov 2017-10-02 777 > 9cae9722 Todor Tomov 2017-04-11 778 ret = ov5645_set_register_array(ov5645, > 9cae9722 Todor Tomov 2017-04-11 779 ov5645_global_init_setting, > 9cae9722 Todor Tomov 2017-04-11 780 ARRAY_SIZE(ov5645_global_init_setting)); > 9cae9722 Todor Tomov 2017-04-11 781 if (ret < 0) { > 9cae9722 Todor Tomov 2017-04-11 782 dev_err(ov5645->dev, > 9cae9722 Todor Tomov 2017-04-11 783 "could not set init registers\n"); > 9cae9722 Todor Tomov 2017-04-11 784 ov5645_set_power_off(ov5645); > 9cae9722 Todor Tomov 2017-04-11 785 goto exit; > 9cae9722 Todor Tomov 2017-04-11 786 } > 9cae9722 Todor Tomov 2017-04-11 787 > 9cae9722 Todor Tomov 2017-04-11 788 ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, > 9cae9722 Todor Tomov 2017-04-11 789 OV5645_SYSTEM_CTRL0_STOP); > 9cae9722 Todor Tomov 2017-04-11 790 if (ret < 0) { > 9cae9722 Todor Tomov 2017-04-11 791 ov5645_set_power_off(ov5645); > 9cae9722 Todor Tomov 2017-04-11 792 goto exit; > 9cae9722 Todor Tomov 2017-04-11 793 } > 9cae9722 Todor Tomov 2017-04-11 794 } else { > 9cae9722 Todor Tomov 2017-04-11 795 ov5645_set_power_off(ov5645); > 9cae9722 Todor Tomov 2017-04-11 796 } > 9cae9722 Todor Tomov 2017-04-11 797 } > 9cae9722 Todor Tomov 2017-04-11 798 > 9cae9722 Todor Tomov 2017-04-11 799 /* Update the power count. */ > 9cae9722 Todor Tomov 2017-04-11 800 ov5645->power_count += on ? 1 : -1; > 9cae9722 Todor Tomov 2017-04-11 801 WARN_ON(ov5645->power_count < 0); > 9cae9722 Todor Tomov 2017-04-11 802 > 9cae9722 Todor Tomov 2017-04-11 803 exit: > 9cae9722 Todor Tomov 2017-04-11 804 mutex_unlock(&ov5645->power_lock); > 9cae9722 Todor Tomov 2017-04-11 805 > 9cae9722 Todor Tomov 2017-04-11 @806 return ret; > 9cae9722 Todor Tomov 2017-04-11 807 } > 9cae9722 Todor Tomov 2017-04-11 808 > > :::::: The code at line 806 was first introduced by commit > :::::: 9cae97221aabfb3ca5daaa424a66c9d8eee1ff59 [media] media: Add a driver for the ov5645 camera sensor > > :::::: TO: Todor Tomov <todor.tomov@xxxxxxxxxx> > :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation >
