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path: root/drivers/pcmcia/m32r_pcc.c
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Diffstat (limited to 'drivers/pcmcia/m32r_pcc.c')
-rw-r--r--drivers/pcmcia/m32r_pcc.c41
1 files changed, 28 insertions, 13 deletions
diff --git a/drivers/pcmcia/m32r_pcc.c b/drivers/pcmcia/m32r_pcc.c
index eb126b98ed8a..e50bbf826188 100644
--- a/drivers/pcmcia/m32r_pcc.c
+++ b/drivers/pcmcia/m32r_pcc.c
@@ -296,10 +296,11 @@ static int __init is_alive(u_short sock)
return 0;
}
-static void add_pcc_socket(ulong base, int irq, ulong mapaddr,
- unsigned int ioaddr)
+static int add_pcc_socket(ulong base, int irq, ulong mapaddr,
+ unsigned int ioaddr)
{
pcc_socket_t *t = &socket[pcc_sockets];
+ int err;
/* add sockets */
t->ioaddr = ioaddr;
@@ -328,11 +329,16 @@ static void add_pcc_socket(ulong base, int irq, ulong mapaddr,
t->socket.irq_mask = 0;
t->socket.pci_irq = 2 + pcc_sockets; /* XXX */
- request_irq(irq, pcc_interrupt, 0, "m32r-pcc", pcc_interrupt);
+ err = request_irq(irq, pcc_interrupt, 0, "m32r-pcc", pcc_interrupt);
+ if (err) {
+ if (t->base > 0)
+ release_region(t->base, 0x20);
+ return err;
+ }
pcc_sockets++;
- return;
+ return 0;
}
@@ -683,26 +689,29 @@ static int __init init_m32r_pcc(void)
return ret;
ret = platform_device_register(&pcc_device);
- if (ret){
- platform_driver_unregister(&pcc_driver);
- return ret;
- }
+ if (ret)
+ goto unreg_driv;
printk(KERN_INFO "m32r PCC probe:\n");
pcc_sockets = 0;
- add_pcc_socket(M32R_PCC0_BASE, PCC0_IRQ, M32R_PCC0_MAPBASE, 0x1000);
+ ret = add_pcc_socket(M32R_PCC0_BASE, PCC0_IRQ, M32R_PCC0_MAPBASE,
+ 0x1000);
+ if (ret)
+ goto unreg_dev;
#ifdef CONFIG_M32RPCC_SLOT2
- add_pcc_socket(M32R_PCC1_BASE, PCC1_IRQ, M32R_PCC1_MAPBASE, 0x2000);
+ ret = add_pcc_socket(M32R_PCC1_BASE, PCC1_IRQ, M32R_PCC1_MAPBASE,
+ 0x2000);
+ if (ret)
+ goto unreg_dev;
#endif
if (pcc_sockets == 0) {
printk("socket is not found.\n");
- platform_device_unregister(&pcc_device);
- platform_driver_unregister(&pcc_driver);
- return -ENODEV;
+ ret = -ENODEV;
+ goto unreg_dev;
}
/* Set up interrupt handler(s) */
@@ -728,6 +737,12 @@ static int __init init_m32r_pcc(void)
}
return 0;
+
+unreg_dev:
+ platform_device_unregister(&pcc_device);
+unreg_driv:
+ platform_driver_unregister(&pcc_driver);
+ return ret;
} /* init_m32r_pcc */
static void __exit exit_m32r_pcc(void)