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Commit af80318e authored by David S. Miller's avatar David S. Miller
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[SPARC64]: Fix request_irq() ignored result warnings in PCI controller code. 

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c57c2ffb
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Showing with 104 additions and 46 deletions
arch/sparc64/kernel/pci_psycho.c
View file @ af80318e
......@@ -836,6 +836,7 @@ static void psycho_register_error_handlers(struct pci_pbm_info *pbm)
struct of_device *op = of_find_device_by_node(pbm->prom_node);
unsigned long base = pbm->controller_regs;
u64 tmp;
int err;
if (!op)
return;
......@@ -852,12 +853,27 @@ static void psycho_register_error_handlers(struct pci_pbm_info *pbm)
if (op->num_irqs < 6)
return;
request_irq(op->irqs[1], psycho_ue_intr, 0,
/* We really mean to ignore the return result here. Two
* PCI controller share the same interrupt numbers and
* drive the same front-end hardware. Whichever of the
* two get in here first will register the IRQ handler
* the second will just error out since we do not pass in
* IRQF_SHARED.
*/
err = request_irq(op->irqs[1], psycho_ue_intr, 0,
"PSYCHO_UE", pbm);
request_irq(op->irqs[2], psycho_ce_intr, 0,
err = request_irq(op->irqs[2], psycho_ce_intr, 0,
"PSYCHO_CE", pbm);
request_irq(op->irqs[0], psycho_pcierr_intr, 0,
/* This one, however, ought not to fail. We can just warn
* about it since the system can still operate properly even
* if this fails.
*/
err = request_irq(op->irqs[0], psycho_pcierr_intr, 0,
"PSYCHO_PCIERR", pbm);
if (err)
printk(KERN_WARNING "%s: Could not register PCIERR, "
"err=%d\n", pbm->name, err);
/* Enable UE and CE interrupts for controller. */
psycho_write(base + PSYCHO_ECC_CTRL,
......
arch/sparc64/kernel/pci_sabre.c
View file @ af80318e
......@@ -831,6 +831,7 @@ static void sabre_register_error_handlers(struct pci_pbm_info *pbm)
struct of_device *op;
unsigned long base = pbm->controller_regs;
u64 tmp;
int err;
if (pbm->chip_type == PBM_CHIP_TYPE_SABRE)
dp = dp->parent;
......@@ -857,15 +858,24 @@ static void sabre_register_error_handlers(struct pci_pbm_info *pbm)
SABRE_UEAFSR_SDRD | SABRE_UEAFSR_SDWR |
SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE));
request_irq(op->irqs[1], sabre_ue_intr, 0, "SABRE_UE", pbm);
err = request_irq(op->irqs[1], sabre_ue_intr, 0, "SABRE_UE", pbm);
if (err)
printk(KERN_WARNING "%s: Couldn't register UE, err=%d.\n",
pbm->name, err);
sabre_write(base + SABRE_CE_AFSR,
(SABRE_CEAFSR_PDRD | SABRE_CEAFSR_PDWR |
SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR));
request_irq(op->irqs[2], sabre_ce_intr, 0, "SABRE_CE", pbm);
request_irq(op->irqs[0], sabre_pcierr_intr, 0,
err = request_irq(op->irqs[2], sabre_ce_intr, 0, "SABRE_CE", pbm);
if (err)
printk(KERN_WARNING "%s: Couldn't register CE, err=%d.\n",
pbm->name, err);
err = request_irq(op->irqs[0], sabre_pcierr_intr, 0,
"SABRE_PCIERR", pbm);
if (err)
printk(KERN_WARNING "%s: Couldn't register PCIERR, err=%d.\n",
pbm->name, err);
tmp = sabre_read(base + SABRE_PCICTRL);
tmp |= SABRE_PCICTRL_ERREN;
......
arch/sparc64/kernel/pci_schizo.c
View file @ af80318e
......@@ -984,6 +984,7 @@ static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm)
{
struct of_device *op = of_find_device_by_node(pbm->prom_node);
u64 tmp, err_mask, err_no_mask;
int err;
/* Tomatillo IRQ property layout is:
* 0: PCIERR
......@@ -993,24 +994,39 @@ static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm)
* 4: POWER FAIL?
*/
if (pbm_routes_this_ino(pbm, SCHIZO_UE_INO))
request_irq(op->irqs[1], schizo_ue_intr, 0,
if (pbm_routes_this_ino(pbm, SCHIZO_UE_INO)) {
err = request_irq(op->irqs[1], schizo_ue_intr, 0,
"TOMATILLO_UE", pbm);
if (pbm_routes_this_ino(pbm, SCHIZO_CE_INO))
request_irq(op->irqs[2], schizo_ce_intr, 0,
if (err)
printk(KERN_WARNING "%s: Could not register UE, "
"err=%d\n", pbm->name, err);
}
if (pbm_routes_this_ino(pbm, SCHIZO_CE_INO)) {
err = request_irq(op->irqs[2], schizo_ce_intr, 0,
"TOMATILLO_CE", pbm);
if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_A_INO))
request_irq(op->irqs[0], schizo_pcierr_intr, 0,
if (err)
printk(KERN_WARNING "%s: Could not register CE, "
"err=%d\n", pbm->name, err);
}
err = 0;
if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_A_INO)) {
err = request_irq(op->irqs[0], schizo_pcierr_intr, 0,
"TOMATILLO_PCIERR", pbm);
else if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_B_INO))
request_irq(op->irqs[0], schizo_pcierr_intr, 0,
} else if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_B_INO)) {
err = request_irq(op->irqs[0], schizo_pcierr_intr, 0,
"TOMATILLO_PCIERR", pbm);
}
if (err)
printk(KERN_WARNING "%s: Could not register PCIERR, "
"err=%d\n", pbm->name, err);
if (pbm_routes_this_ino(pbm, SCHIZO_SERR_INO))
request_irq(op->irqs[3], schizo_safarierr_intr, 0,
if (pbm_routes_this_ino(pbm, SCHIZO_SERR_INO)) {
err = request_irq(op->irqs[3], schizo_safarierr_intr, 0,
"TOMATILLO_SERR", pbm);
if (err)
printk(KERN_WARNING "%s: Could not register SERR, "
"err=%d\n", pbm->name, err);
}
/* Enable UE and CE interrupts for controller. */
schizo_write(pbm->controller_regs + SCHIZO_ECC_CTRL,
......@@ -1064,6 +1080,7 @@ static void schizo_register_error_handlers(struct pci_pbm_info *pbm)
{
struct of_device *op = of_find_device_by_node(pbm->prom_node);
u64 tmp, err_mask, err_no_mask;
int err;
/* Schizo IRQ property layout is:
* 0: PCIERR
......@@ -1073,24 +1090,39 @@ static void schizo_register_error_handlers(struct pci_pbm_info *pbm)
* 4: POWER FAIL?
*/
if (pbm_routes_this_ino(pbm, SCHIZO_UE_INO))
request_irq(op->irqs[1], schizo_ue_intr, 0,
if (pbm_routes_this_ino(pbm, SCHIZO_UE_INO)) {
err = request_irq(op->irqs[1], schizo_ue_intr, 0,
"SCHIZO_UE", pbm);
if (pbm_routes_this_ino(pbm, SCHIZO_CE_INO))
request_irq(op->irqs[2], schizo_ce_intr, 0,
if (err)
printk(KERN_WARNING "%s: Could not register UE, "
"err=%d\n", pbm->name, err);
}
if (pbm_routes_this_ino(pbm, SCHIZO_CE_INO)) {
err = request_irq(op->irqs[2], schizo_ce_intr, 0,
"SCHIZO_CE", pbm);
if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_A_INO))
request_irq(op->irqs[0], schizo_pcierr_intr, 0,
if (err)
printk(KERN_WARNING "%s: Could not register CE, "
"err=%d\n", pbm->name, err);
}
err = 0;
if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_A_INO)) {
err = request_irq(op->irqs[0], schizo_pcierr_intr, 0,
"SCHIZO_PCIERR", pbm);
else if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_B_INO))
request_irq(op->irqs[0], schizo_pcierr_intr, 0,
} else if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_B_INO)) {
err = request_irq(op->irqs[0], schizo_pcierr_intr, 0,
"SCHIZO_PCIERR", pbm);
}
if (err)
printk(KERN_WARNING "%s: Could not register PCIERR, "
"err=%d\n", pbm->name, err);
if (pbm_routes_this_ino(pbm, SCHIZO_SERR_INO))
request_irq(op->irqs[3], schizo_safarierr_intr, 0,
if (pbm_routes_this_ino(pbm, SCHIZO_SERR_INO)) {
err = request_irq(op->irqs[3], schizo_safarierr_intr, 0,
"SCHIZO_SERR", pbm);
if (err)
printk(KERN_WARNING "%s: Could not register SERR, "
"err=%d\n", pbm->name, err);
}
/* Enable UE and CE interrupts for controller. */
schizo_write(pbm->controller_regs + SCHIZO_ECC_CTRL,
......
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