Zheyu Ma 85ec038b53
video: fbdev: neofb: Fix the check of 'var->pixclock' ...
The previous check against 'var->pixclock' doesn't return -EINVAL when
it equals zero, but the driver uses it again, causing the divide error.
Fix this by returning when 'var->pixclock' is zero.
The following log reveals it:
divide error: 0000 [#1 ] PREEMPT SMP KASAN PTI
RIP: 0010:neofb_set_par+0x190f/0x49a0
Call Trace:
<TASK>
fb_set_var+0x604/0xeb0
do_fb_ioctl+0x234/0x670
fb_ioctl+0xdd/0x130
do_syscall_64+0x3b/0x90
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com >
Signed-off-by: Helge Deller <deller@gmx.de >
2022-04-11 08:23:49 +02:00
2022-03-31 13:08:13 -07:00
2022-03-28 12:27:35 -07:00
2022-03-17 13:56:58 -07:00
2022-03-18 20:31:14 +01:00
2022-03-29 11:30:12 -07:00
2022-03-25 13:35:34 -07:00
2022-04-02 11:03:03 -07:00
2022-03-18 17:12:09 +01:00
2022-03-28 12:27:35 -07:00
2022-03-24 19:37:53 -07:00
2022-03-31 14:51:34 -07:00
2022-04-03 12:21:14 -07:00
2022-03-23 18:03:08 -07:00
2022-03-28 12:27:35 -07:00
2022-03-22 12:15:47 +01:00
2022-03-30 16:17:54 -07:00
2022-03-31 13:57:15 -07:00
2022-03-22 10:51:17 -07:00
2022-03-24 18:12:09 -07:00
2022-03-30 10:54:49 -07:00
2022-03-21 10:34:57 +01:00
2022-03-28 12:27:35 -07:00
2022-04-01 10:26:09 -07:00
2022-03-28 14:32:39 -07:00
2022-04-01 10:14:32 -07:00
2022-03-24 12:30:37 -07:00
2022-03-28 12:27:35 -07:00
2022-03-28 12:27:35 -07:00
2022-03-26 12:46:08 -07:00
2022-03-17 14:32:59 +01:00
2022-03-28 12:27:35 -07:00
2022-03-24 19:37:53 -07:00
2022-04-01 10:14:32 -07:00
2022-03-29 08:50:14 -07:00
2022-03-23 18:03:08 -07:00
2022-03-21 13:26:38 +00:00
2022-03-27 14:09:48 -07:00
2022-04-01 15:57:27 -07:00
2022-03-24 16:19:43 -07:00
2022-03-23 18:23:13 -07:00
2022-03-25 13:56:18 -07:00
2022-03-28 12:27:35 -07:00
2022-03-28 13:00:51 -07:00
2022-03-31 16:09:41 -07:00
2022-03-31 13:57:15 -07:00
2022-03-21 18:33:57 -07:00
2022-03-30 10:04:11 -07:00
2022-04-01 16:26:57 -07:00
2022-03-18 14:08:36 +01:00
2022-03-28 12:27:35 -07:00
2022-03-29 21:37:12 +02:00
2022-03-18 14:01:41 +01:00
2022-04-02 10:54:52 -07:00
2022-03-25 10:11:38 -07:00
2022-03-29 08:45:16 -07:00
2022-03-28 11:52:53 -07:00
2022-04-02 10:44:18 -07:00
2022-03-21 14:46:01 -07:00
2022-03-28 12:41:28 -07:00
2022-03-18 14:01:19 +01:00
2022-03-30 12:08:11 -07:00
2022-03-30 10:58:28 -07:00
2022-03-30 10:50:48 -07:00
2022-04-01 09:37:18 -07:00
2022-03-27 22:18:39 +02:00
2022-03-28 14:32:39 -07:00
2022-03-24 13:13:26 -07:00
2022-03-28 12:27:35 -07:00
2022-03-25 13:35:34 -07:00
2022-03-28 12:50:50 -07:00
2022-03-24 19:37:53 -07:00
2022-03-23 18:23:13 -07:00
2022-03-18 19:00:26 +01:00
2022-03-28 12:27:35 -07:00
2022-03-28 13:00:51 -07:00
2022-03-28 14:32:39 -07:00
2022-03-31 13:57:15 -07:00
2022-03-31 13:57:15 -07:00
2022-04-11 08:23:49 +02:00
2022-03-31 14:51:34 -07:00
2022-03-31 13:57:15 -07:00
2022-03-18 14:07:09 +01:00
2022-03-31 14:14:03 -07:00
2022-03-25 14:22:15 -05:00
85ec038b53