b128458876
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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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| qedi_dbg.c | ||
| qedi_dbg.h | ||
| qedi_debugfs.c | ||
| qedi_fw_api.c | ||
| qedi_fw_iscsi.h | ||
| qedi_fw_scsi.h | ||
| qedi_fw.c | ||
| qedi_gbl.h | ||
| qedi_hsi.h | ||
| qedi_iscsi.c | ||
| qedi_iscsi.h | ||
| qedi_main.c | ||
| qedi_nvm_iscsi_cfg.h | ||
| qedi_sysfs.c | ||
| qedi_version.h | ||
| qedi.h | ||