From: Damian Wrobel Date: Wed, 23 Nov 2005 23:45:17 +0000 (-0800) Subject: [PATCH] USB: SN9C10x driver - bad page state fix X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0b67ba63605a0107f4f3f6d928cdea1e8953fb63;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [PATCH] USB: SN9C10x driver - bad page state fix This patch solves the following problem I've already discovered on the latest 2.6.15-rc1-git1 kernel: Nov 13 07:37:28 wrobel kernel: Bad page state at free_hot_cold_page (in process 'motion', page c164e020) Nov 13 07:37:28 wrobel kernel: flags:0x40000400 mapping:00000000 mapcount:0 count:0 Nov 13 07:37:28 wrobel kernel: Backtrace: Nov 13 07:37:28 wrobel kernel: [] bad_page+0x85/0xbe Nov 13 07:37:28 wrobel kernel: [] free_hot_cold_page+0x54/0x129 Nov 13 07:37:28 wrobel kernel: [] __vunmap+0xa9/0xfe Nov 13 07:37:28 wrobel kernel: [] vmalloc_to_page+0x34/0x55 Nov 13 07:37:28 wrobel kernel: [] vfree+0x27/0x35 Nov 13 07:37:28 wrobel kernel: [] sn9c102_release_buffers+0x30/0x3f [sn9c102] Nov 13 07:37:28 wrobel kernel: [] sn9c102_release+0x37/0xeb [sn9c102] Nov 13 07:37:28 wrobel kernel: [] __fput+0xa9/0x1aa Nov 13 07:37:28 wrobel kernel: [] filp_close+0x49/0x6d Nov 13 07:37:30 wrobel kernel: [] sys_close+0x74/0x95 Nov 13 07:37:30 wrobel kernel: [] syscall_call+0x7/0xb Nov 13 07:37:31 wrobel kernel: Trying to fix it up, but a reboot is needed Signed-off-by: Damian Wrobel Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- diff --git a/drivers/usb/media/sn9c102_core.c b/drivers/usb/media/sn9c102_core.c index cf8cfbabefd..b2e66e3b90a 100644 --- a/drivers/usb/media/sn9c102_core.c +++ b/drivers/usb/media/sn9c102_core.c @@ -199,7 +199,7 @@ static void sn9c102_release_buffers(struct sn9c102_device* cam) { if (cam->nbuffers) { rvfree(cam->frame[0].bufmem, - cam->nbuffers * cam->frame[0].buf.length); + cam->nbuffers * PAGE_ALIGN(cam->frame[0].buf.length)); cam->nbuffers = 0; } }