staging: rt5208: Fix a sleep-in-atomic bug in xd_copy_page

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The driver may sleep under a spin lock, and the function call path is:
rtsx_exclusive_enter_ss (acquire the lock by spin_lock)
  rtsx_enter_ss
    rtsx_power_off_card
      xd_cleanup_work
        xd_delay_write
          xd_finish_write
            xd_copy_page
              wait_timeout
                schedule_timeout --> may sleep

To fix it, "wait_timeout" is replaced with mdelay in xd_copy_page.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jia-Ju Bai 2017-06-05 15:30:16 +08:00 • committed by Greg Kroah-Hartman

parent ac66925108

commit 498c4b4e9c

1 changed files with 1 additions and 1 deletions

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drivers/staging/rts5208/xd.c

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