On Wed, Aug 29, 2018 at 6:42 PM George Kennedy <george.kennedy@xxxxxxxxxx> wrote: > > sym_int_sir() in sym_hipd.c does not check the command pointer for NULL > before using it in debug message prints. > > Suggested-by: Matthew Wilcox <matthew.wilcox@xxxxxxxxxx> > Signed-off-by: George Kennedy <george.kennedy@xxxxxxxxxx> > Reviewed-by: Mark Kanda <mark.kanda@xxxxxxxxxx> > +#define sym_printk(lvl, tp, cp, fmt, v...) do { \ Since all users are KERN_WARNING level, perhaps sym_pr_warn(tp, ...) ... \ ... \ ..._printk(KERN_WARNING ... ? > + if (cp) \ > + scmd_printk(lvl, cp->cmd, fmt, ##v); \ > + else \ > + starget_printk(lvl, tp->starget, fmt, ##v); \ > +} while (0) > + > /* > * chip exception handler for programmed interrupts. > */ > @@ -4415,7 +4422,7 @@ static void sym_int_sir(struct sym_hcb *np) > * been selected with ATN. We do not want to handle that. > */ > case SIR_SEL_ATN_NO_MSG_OUT: > - scmd_printk(KERN_WARNING, cp->cmd, > + sym_printk(KERN_WARNING, tp, cp, > "No MSG OUT phase after selection with ATN\n"); > goto out_stuck; > /* > @@ -4423,7 +4430,7 @@ static void sym_int_sir(struct sym_hcb *np) > * having reselected the initiator. > */ > case SIR_RESEL_NO_MSG_IN: > - scmd_printk(KERN_WARNING, cp->cmd, > + sym_printk(KERN_WARNING, tp, cp, > "No MSG IN phase after reselection\n"); > goto out_stuck; > /* > @@ -4431,7 +4438,7 @@ static void sym_int_sir(struct sym_hcb *np) > * an IDENTIFY. > */ > case SIR_RESEL_NO_IDENTIFY: > - scmd_printk(KERN_WARNING, cp->cmd, > + sym_printk(KERN_WARNING, tp, cp, > "No IDENTIFY after reselection\n"); > goto out_stuck; > /* > @@ -4460,7 +4467,7 @@ static void sym_int_sir(struct sym_hcb *np) > case SIR_RESEL_ABORTED: > np->lastmsg = np->msgout[0]; > np->msgout[0] = M_NOOP; > - scmd_printk(KERN_WARNING, cp->cmd, > + sym_printk(KERN_WARNING, tp, cp, > "message %x sent on bad reselection\n", np->lastmsg); > goto out; > /* > -- > 1.8.3.1 > -- With Best Regards, Andy Shevchenko