[PARPORT] SUNBPP: Fix OOPS when debugging is enabled.
David S. Miller [Tue, 24 Apr 2007 06:33:17 +0000 (23:33 -0700)]
The debugging code would dereference __iomem pointers instead
of going through sbus_{read,write}{b,w,l}().

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/parport/parport_sunbpp.c

index 9793533..400bb90 100644 (file)
@@ -126,7 +126,7 @@ static unsigned char status_sunbpp_to_pc(struct parport *p)
        if (!(value_tcr & P_TCR_BUSY))
                bits |= PARPORT_STATUS_BUSY;
 
-       dprintk((KERN_DEBUG "tcr 0x%x ir 0x%x\n", regs->p_tcr, regs->p_ir));
+       dprintk((KERN_DEBUG "tcr 0x%x ir 0x%x\n", value_tcr, value_ir));
        dprintk((KERN_DEBUG "read status 0x%x\n", bits));
        return bits;
 }
@@ -147,7 +147,7 @@ static unsigned char control_sunbpp_to_pc(struct parport *p)
        if (value_or & P_OR_SLCT_IN)
                bits |= PARPORT_CONTROL_SELECT;
 
-       dprintk((KERN_DEBUG "tcr 0x%x or 0x%x\n", regs->p_tcr, regs->p_or));
+       dprintk((KERN_DEBUG "tcr 0x%x or 0x%x\n", value_tcr, value_or));
        dprintk((KERN_DEBUG "read control 0x%x\n", bits));
        return bits;
 }
@@ -165,7 +165,8 @@ static unsigned char parport_sunbpp_frob_control(struct parport *p,
        unsigned char value_tcr = sbus_readb(&regs->p_tcr);
        unsigned char value_or = sbus_readb(&regs->p_or);
 
-       dprintk((KERN_DEBUG "frob1: tcr 0x%x or 0x%x\n", regs->p_tcr, regs->p_or));
+       dprintk((KERN_DEBUG "frob1: tcr 0x%x or 0x%x\n",
+                value_tcr, value_or));
        if (mask & PARPORT_CONTROL_STROBE) {
                if (val & PARPORT_CONTROL_STROBE) {
                        value_tcr &= ~P_TCR_DS;
@@ -197,7 +198,8 @@ static unsigned char parport_sunbpp_frob_control(struct parport *p,
 
        sbus_writeb(value_or, &regs->p_or);
        sbus_writeb(value_tcr, &regs->p_tcr);
-       dprintk((KERN_DEBUG "frob2: tcr 0x%x or 0x%x\n", regs->p_tcr, regs->p_or));
+       dprintk((KERN_DEBUG "frob2: tcr 0x%x or 0x%x\n",
+                value_tcr, value_or));
        return parport_sunbpp_read_control(p);
 }