Add three audit for request_region() function.
Mere newbie here, I don't know if my style of posting and developing is correct.
If anything I've done wrong, please correct me.
--- linux-3.0_build/drivers/isdn/sc/init.c 2011-07-22 10:17:23.000000000 +0800
+++ linux-3.0/drivers/isdn/sc/init.c 2011-10-25 14:22:14.475039218 +0800
@@ -349,19 +349,22 @@ static int __init sc_init(void)
sc_adapter[cinst]->iobase = io[b];
for(i = 0 ; i < MAX_IO_REGS - 1 ; i++) {
sc_adapter[cinst]->ioport[i] = io[b] + i * 0x400;
- request_region(sc_adapter[cinst]->ioport[i], 1,
- interface->id);
+ if (!request_region(sc_adapter[cinst]->ioport[i], 1,
+ interface->id))
+ pr_debug("request_region failed\n");
pr_debug("Requesting I/O Port %#x\n",
sc_adapter[cinst]->ioport[i]);
}
sc_adapter[cinst]->ioport[IRQ_SELECT] = io[b] + 0x2;
- request_region(sc_adapter[cinst]->ioport[IRQ_SELECT], 1,
- interface->id);
+ if (!request_region(sc_adapter[cinst]->ioport[IRQ_SELECT], 1,
+ interface->id))
+ pr_debug("request_region failed\n");
pr_debug("Requesting I/O Port %#x\n",
sc_adapter[cinst]->ioport[IRQ_SELECT]);
sc_adapter[cinst]->rambase = ram[b];
- request_region(sc_adapter[cinst]->rambase, SRAM_PAGESIZE,
- interface->id);
+ if (!request_region(sc_adapter[cinst]->rambase, SRAM_PAGESIZE,
+ interface->id))
+ pr_debug("request_region failed\n");
pr_info(" %s (%d) - %s %d channels IRQ %d, I/O Base 0x%x, RAM Base
0x%lx\n",
sc_adapter[cinst]->devicename,
--
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