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author | Johannes Thumshirn | 2018-09-21 09:01:01 +0200 |
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committer | Martin K. Petersen | 2018-09-21 18:42:57 +0200 |
commit | f1f1fadacaf08b7cf11714c0c29f8fa4d4ef68a9 (patch) | |
tree | bc8108d9a193f10828bbdb234c20f332493bbd5f /fs/cifs/fscache.h | |
parent | scsi: ipr: System hung while dlpar adding primary ipr adapter back (diff) | |
download | kernel-qcow2-linux-f1f1fadacaf08b7cf11714c0c29f8fa4d4ef68a9.tar.gz kernel-qcow2-linux-f1f1fadacaf08b7cf11714c0c29f8fa4d4ef68a9.tar.xz kernel-qcow2-linux-f1f1fadacaf08b7cf11714c0c29f8fa4d4ef68a9.zip |
scsi: sd: don't crash the host on invalid commands
When sd_init_command() get's a command with a unknown req_op() it crashes the
system via BUG().
This makes debugging the actual reason for the broken request cmd_flags pretty
hard as the system is down before it's able to write out debugging data on the
serial console or the trace buffer.
Change the BUG() to a WARN_ON() and return BLKPREP_KILL to fail gracefully and
return an I/O error to the producer of the request.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'fs/cifs/fscache.h')
0 files changed, 0 insertions, 0 deletions