[SPARC] uctrl: Check request_irq() return value.
Based upon a patch by Monakhov Dmitriy.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index 45cf5bc..44d2ef9 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -364,6 +364,7 @@
struct linux_prom_irqs tmp_irq[2];
unsigned int vaddr[2] = { 0, 0 };
int tmpnode, uctrlnode = prom_getchild(prom_root_node);
+ int err;
tmpnode = prom_searchsiblings(uctrlnode, "obio");
@@ -389,7 +390,12 @@
if(!driver->irq)
driver->irq = tmp_irq[0].pri;
- request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+ err = request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+ if (err) {
+ printk("%s: unable to register irq %d\n",
+ __FUNCTION__, driver->irq);
+ return err;
+ }
if (misc_register(&uctrl_dev)) {
printk("%s: unable to get misc minor %d\n",