diff options
| author | Maher Sanalla <msanalla@nvidia.com> | 2022-01-13 15:48:48 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2022-02-01 20:59:40 -0800 |
| commit | 3c5193a87b0fea090aa3f769d020337662d87b5e (patch) | |
| tree | 3935c4595a34c11284ec520f77d8459a761c57bd /drivers/mtd | |
| parent | 4a08a131351e375a2969b98e46df260ed04dcba7 (diff) | |
net/mlx5: Use del_timer_sync in fw reset flow of halting poll
Substitute del_timer() with del_timer_sync() in fw reset polling
deactivation flow, in order to prevent a race condition which occurs
when del_timer() is called and timer is deactivated while another
process is handling the timer interrupt. A situation that led to
the following call trace:
RIP: 0010:run_timer_softirq+0x137/0x420
<IRQ>
recalibrate_cpu_khz+0x10/0x10
ktime_get+0x3e/0xa0
? sched_clock_cpu+0xb/0xc0
__do_softirq+0xf5/0x2ea
irq_exit_rcu+0xc1/0xf0
sysvec_apic_timer_interrupt+0x9e/0xc0
asm_sysvec_apic_timer_interrupt+0x12/0x20
</IRQ>
Fixes: 38b9f903f22b ("net/mlx5: Handle sync reset request event")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/mtd')
0 files changed, 0 insertions, 0 deletions