scsi: qedi: Fix a possible sleep-in-atomic bug in qedi_process_tmf_resp

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The driver may sleep under a spinlock.
The function call path is:
qedi_cpu_offline (acquire the spinlock)
  qedi_fp_process_cqes
    qedi_mtask_completion
      qedi_process_tmf_resp
        kzalloc(GFP_KERNEL) --> may sleep

To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.

This bug is found by my static analysis tool(DSAC) and checked by my
code review.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Jia-Ju Bai 2017-12-13 17:11:08 +08:00 • committed by Martin K. Petersen

parent 6ae9abe0bd

commit b128458876

1 changed files with 1 additions and 1 deletions

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drivers/scsi/qedi/qedi_fw.c

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