From: Colin Ian King Date: Wed, 5 Sep 2018 09:46:05 +0000 (+0100) Subject: staging: most: video: fix registration of an empty comp core_component X-Git-Tag: v4.19.3~169 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e55677b9efb85513e5ffbb2adc1ad9cb314099a9;p=platform%2Fkernel%2Flinux-rpi.git staging: most: video: fix registration of an empty comp core_component [ Upstream commit 1f447e51c0b9e8beeec0917ea5f51930f55e17c9 ] Currently we have structrues comp (which is empty) and comp_info being used to register and deregister the component. This mismatch in naming occurred from a previous commit that renamed aim_info to comp. Fix this to use consistent component naming in line with most/net, most/sound etc. This fixes the message two issues, one with a null empty name when loading the module: [ 1485.269515] most_core: registered new core component (null) and an Oops when removing the module: [ 1485.277971] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 1485.278648] PGD 0 P4D 0 [ 1485.279253] Oops: 0002 [#2] SMP PTI [ 1485.279847] CPU: 1 PID: 32629 Comm: modprobe Tainted: P D WC OE 4.18.0-8-generic #9 [ 1485.280442] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 [ 1485.281040] RIP: 0010:most_deregister_component+0x3c/0x70 [most_core] .. etc Fixes: 1b10a0316e2d ("staging: most: video: remove aim designators") Signed-off-by: Colin Ian King Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/most/video/video.c b/drivers/staging/most/video/video.c index cf342eb..ad7e28a 100644 --- a/drivers/staging/most/video/video.c +++ b/drivers/staging/most/video/video.c @@ -530,7 +530,7 @@ static int comp_disconnect_channel(struct most_interface *iface, return 0; } -static struct core_component comp_info = { +static struct core_component comp = { .name = "video", .probe_channel = comp_probe_channel, .disconnect_channel = comp_disconnect_channel, @@ -565,7 +565,7 @@ static void __exit comp_exit(void) } spin_unlock_irq(&list_lock); - most_deregister_component(&comp_info); + most_deregister_component(&comp); BUG_ON(!list_empty(&video_devices)); }