[SCSI] ch: Check NULL for kmalloc() return
Verify that ch->dt is not NULL before using it. Signed-off-by: Davidlohr Bueso <dave@gnu.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Verify that ch->dt is not NULL before using it. Signed-off-by: Davidlohr Bueso <dave@gnu.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>