Re: [syzbot] [media?] WARNING in cx25840_init

[syzbot]

> #syz test: git:// git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 940de590b839f71d6dc846160534bf202401b8b7 diff --git a/drivers/media/i2c/cx25840/cx25840-core.c b/drivers/media/i2c/cx25840/cx25840-core.c index a8e21a28174f..6df912c9381b 100644 --- a/drivers/media/i2c/cx25840/cx25840-core.c +++ b/drivers/media/i2c/cx25840/cx25840-core.c @@ -2298,28 +2298,26 @@ static int cx25840_init(struct v4l2_subdev *sd, u32 val) struct cx25840_state *state = to_state(sd); + if (!is_cx2584x(state)) + return -EOPNOTSUPP; + state->generic_mode = true; - if (is_cx2584x(state)) { - /* set datasheet video output defaults */ - state->vid_config = CX25840_VCONFIG_FMT_BT656 | - CX25840_VCONFIG_RES_8BIT | - CX25840_VCONFIG_VBIRAW_DISABLED | - CX25840_VCONFIG_ANCDATA_ENABLED | - CX25840_VCONFIG_TASKBIT_ONE | - CX25840_VCONFIG_ACTIVE_HORIZONTAL | - CX25840_VCONFIG_VALID_NORMAL | - CX25840_VCONFIG_HRESETW_NORMAL | - CX25840_VCONFIG_CLKGATE_NONE | - CX25840_VCONFIG_DCMODE_DWORDS | - CX25840_VCONFIG_IDID0S_NORMAL | - CX25840_VCONFIG_VIPCLAMP_DISABLED; - - /* add additional settings */ - cx25840_vconfig_add(state, val); - } else { - /* TODO: generic mode needs to be developed for other chips */ - WARN_ON(1); - } + /* set datasheet video output defaults */ + state->vid_config = CX25840_VCONFIG_FMT_BT656 | + CX25840_VCONFIG_RES_8BIT | + CX25840_VCONFIG_VBIRAW_DISABLED | + CX25840_VCONFIG_ANCDATA_ENABLED | + CX25840_VCONFIG_TASKBIT_ONE | + CX25840_VCONFIG_ACTIVE_HORIZONTAL | + CX25840_VCONFIG_VALID_NORMAL | + CX25840_VCONFIG_HRESETW_NORMAL | + CX25840_VCONFIG_CLKGATE_NONE | + CX25840_VCONFIG_DCMODE_DWORDS | + CX25840_VCONFIG_IDID0S_NORMAL | + CX25840_VCONFIG_VIPCLAMP_DISABLED; + + /* add additional settings */ + cx25840_vconfig_add(state, val); return 0; }

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