[PATCH] zero 'hw_regs_t hw' allocated from stack in ide.c and ide-cs.c

drivers/ide/ide.c

@@ -1574,6 +1574,7 @@ int generic_ide_ioctl(struct block_device *bdev, unsigned int cmd,
 			if (!capable(CAP_SYS_RAWIO)) return -EACCES;
 			if (copy_from_user(args, (void *)arg, 3 * sizeof(int)))
 				return -EFAULT;
+			memset(&hw, 0, sizeof(hw));
 			ide_init_hwif_ports(&hw, (unsigned long) args[0],
 					    (unsigned long) args[1], NULL);
 			hw.irq = args[2];

drivers/ide/legacy/ide-cs.c

@@ -213,6 +213,7 @@ do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq)
 {
     hw_regs_t hw;
+    memset(&hw, 0, sizeof(hw));
     ide_init_hwif_ports(&hw, io, ctl, NULL);
     hw.irq = irq;
     hw.chipset = ide_pci;