From 445a3a04d8cb388786bbe8f997bf2034521dea09 Mon Sep 17 00:00:00 2001 From: Nico Huber Date: Thu, 21 Jun 2012 10:52:49 +0200 Subject: libpayload: Shutdown reasonably if we can't init usb msc device This lets the init of usb mass storage return if the device configuration is unusable. Also add some checks for proper shutdown so we don't free/remove an uninitialized device. Change-Id: I6daf9b38e632b6e381bcd5a7717f0f1a3150b64a Signed-off-by: Nico Huber Reviewed-on: http://review.coreboot.org/1130 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- payloads/libpayload/drivers/usb/usbmsc.c | 28 ++++++++++++++++++++-------- 1 file changed, 20 insertions(+), 8 deletions(-) (limited to 'payloads/libpayload/drivers/usb') diff --git a/payloads/libpayload/drivers/usb/usbmsc.c b/payloads/libpayload/drivers/usb/usbmsc.c index d1e33022c3..ac1284129b 100644 --- a/payloads/libpayload/drivers/usb/usbmsc.c +++ b/payloads/libpayload/drivers/usb/usbmsc.c @@ -70,9 +70,11 @@ static const char *msc_protocol_strings[0x51] = { static void usb_msc_destroy (usbdev_t *dev) { - if (usbdisk_remove) - usbdisk_remove (dev); - free (dev->data); + if (dev->data) { + if (MSC_INST (dev)->usbdisk_created && usbdisk_remove) + usbdisk_remove (dev); + free (dev->data); + } dev->data = 0; } @@ -417,6 +419,9 @@ usb_msc_init (usbdev_t *dev) { int i, timeout; + /* init .data before setting .destroy */ + dev->data = NULL; + dev->destroy = usb_msc_destroy; dev->poll = usb_msc_poll; @@ -451,6 +456,7 @@ usb_msc_init (usbdev_t *dev) MSC_INST (dev)->protocol = interface->bInterfaceSubClass; MSC_INST (dev)->bulk_in = 0; MSC_INST (dev)->bulk_out = 0; + MSC_INST (dev)->usbdisk_created = 0; for (i = 1; i <= dev->num_endp; i++) { if (dev->endpoints[i].endpoint == 0) @@ -465,10 +471,14 @@ usb_msc_init (usbdev_t *dev) MSC_INST (dev)->bulk_out = &dev->endpoints[i]; } - if (MSC_INST (dev)->bulk_in == 0) - fatal ("couldn't find bulk-in endpoint"); - if (MSC_INST (dev)->bulk_out == 0) - fatal ("couldn't find bulk-out endpoint"); + if (MSC_INST (dev)->bulk_in == 0) { + printf("couldn't find bulk-in endpoint"); + return; + } + if (MSC_INST (dev)->bulk_out == 0) { + printf("couldn't find bulk-out endpoint"); + return; + } debug (" using endpoint %x as in, %x as out\n", MSC_INST (dev)->bulk_in->endpoint, MSC_INST (dev)->bulk_out->endpoint); @@ -514,6 +524,8 @@ usb_msc_init (usbdev_t *dev) } debug ("\n"); - if ((read_capacity (dev) == MSC_COMMAND_OK) && usbdisk_create) + if ((read_capacity (dev) == MSC_COMMAND_OK) && usbdisk_create) { usbdisk_create (dev); + MSC_INST (dev)->usbdisk_created = 1; + } } -- cgit v1.2.3