diff options
| author | Xu Jianqun <jay.xu@rock-chips.com> | 2017-05-04 11:16:52 +0800 |
|---|---|---|
| committer | Huang, Tao <huangtao@rock-chips.com> | 2017-05-08 15:46:26 +0800 |
| commit | f111309c6a051f3fa6b48f9f5e372faba118b601 (patch) | |
| tree | 0d1a9a374383221acb0e52de44ab7c6a908c6c3e /drivers/mailbox | |
| parent | e759aa4172306f1e1bd89dd0275b4c014f03cfed (diff) | |
mailbox: rk3368: fix error setting if mbox_msg is null
Fix the error dump:
[19252.682822] Unable to handle kernel NULL pointer dereference at
virtual address 00000020
[19252.682834] pgd = ffffff800935d000
[19252.682844] [00000020] *pgd=0000000077ffe003, *pud=0000000077ffe003,
*pmd=0000000000000000
[19252.682852] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[19252.682863] Modules linked in: pvrsrvkm(O)
[19252.682872] CPU: 1 PID: 59 Comm: irq/32-ff6b0000 Tainted: G W
O 4.4.55 #34
[19252.682875] Hardware name: Rockchip rk3368 p9 board (DT)
[19252.682880] task: ffffffc074cf8c40 ti: ffffffc074d04000 task.ti:
ffffffc074d04000
[19252.682894] PC is at mbox_chan_received_data+0xc/0x20
[19252.682901] LR is at rk3368_mbox_isr+0xb0/0xd0
Change-Id: I1873d6a7e7d1390d2c2c44a77c120d1a02614fdc
Signed-off-by: Xu Jianqun <jay.xu@rock-chips.com>
Diffstat (limited to 'drivers/mailbox')
| -rw-r--r-- | drivers/mailbox/rk3368-mailbox.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/mailbox/rk3368-mailbox.c b/drivers/mailbox/rk3368-mailbox.c index 03f3a74d4623..f006a546f51f 100644 --- a/drivers/mailbox/rk3368-mailbox.c +++ b/drivers/mailbox/rk3368-mailbox.c @@ -165,7 +165,6 @@ static irqreturn_t rk3368_mbox_isr(int irq, void *dev_id) msg->rx_size); mbox_chan_received_data(&mb->mbox.chans[idx], msg); - mb->chans[idx].msg = NULL; dev_dbg(mb->mbox.dev, "Chan[%d]: B2A message, cmd 0x%08x\n", idx, msg->cmd); |