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authorGerd Hoffmann <kraxel@redhat.com>2009-08-14 10:36:05 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-08-27 20:43:28 -0500
commit81a322d4a1b68d47908a6630bf22897a289722aa (patch)
treecdca9840d0620d9e0b46d7b81c58abe04a372b78 /hw/max7310.c
parent24e6f3551f3c8ea7cc7524a3e64e84beca59618f (diff)
downloadfocaccia-qemu-81a322d4a1b68d47908a6630bf22897a289722aa.tar.gz
focaccia-qemu-81a322d4a1b68d47908a6630bf22897a289722aa.zip
qdev: add return value to init() callbacks.
Sorry folks, but it has to be.  One more of these invasive qdev patches.

We have a serious design bug in the qdev interface:  device init
callbacks can't signal failure because the init() callback has no
return value.  This patch fixes it.

We have already one case in-tree where this is needed:
Try -device virtio-blk-pci (without drive= specified) and watch qemu
segfault.  This patch fixes it.

With usb+scsi being converted to qdev we'll get more devices where the
init callback can fail for various reasons.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/max7310.c')
-rw-r--r--hw/max7310.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/max7310.c b/hw/max7310.c
index a571e57e90..e7371337c1 100644
--- a/hw/max7310.c
+++ b/hw/max7310.c
@@ -190,7 +190,7 @@ static void max7310_gpio_set(void *opaque, int line, int level)
 
 /* MAX7310 is SMBus-compatible (can be used with only SMBus protocols),
  * but also accepts sequences that are not SMBus so return an I2C device.  */
-static void max7310_init(i2c_slave *i2c)
+static int max7310_init(i2c_slave *i2c)
 {
     MAX7310State *s = FROM_I2C_SLAVE(MAX7310State, i2c);
 
@@ -200,6 +200,7 @@ static void max7310_init(i2c_slave *i2c)
     max7310_reset(&s->i2c);
 
     register_savevm("max7310", -1, 0, max7310_save, max7310_load, s);
+    return 0;
 }
 
 qemu_irq *max7310_gpio_in_get(i2c_slave *i2c)