Unverified Commit e2fd38f9 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!11802 can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhang Changzhong <zhangchangzhong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/B7DHD5ATAYLSVRXSF3USPEFIT5AG76WR/ 
 
https://gitee.com/src-openeuler/kernel/issues/IARWQI 
 
Link:https://gitee.com/openeuler/kernel/pulls/11802

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 81a41d2a 9520a1be

drivers/net/can/spi/mcp251x.c

+1 −1
Original line number Diff line number Diff line
@@ -753,7 +753,7 @@ static int mcp251x_hw_wake(struct spi_device *spi) 
	int ret;



	/* Force wakeup interrupt to wake device, but don't execute IST */

	disable_irq(spi->irq);

	disable_irq_nosync(spi->irq);

	mcp251x_write_2regs(spi, CANINTE, CANINTE_WAKIE, CANINTF_WAKIF);



	/* Wait for oscillator startup timer after wake up */