On Fri, 19 Aug 2011 16:28:25 +0200, Per Forlin <per.forlin@xxxxxxxxxxxxxx>
wrote:
@@ -3605,6 +3608,9 @@ static int __init fsg_init(void)
int rc;
struct fsg_dev *fsg;
+ if (!FSG_NUM_BUFFERS_IS_VALID(fsg_num_buffers))
Care to add pr_err() here? Or better yet, change
fsg_num_buffers_is_valid()
to a function, eg.:
static inline int fsg_num_buffers_validate()
{
if (fsg_num_buffers && fsg_num_buffers <= 4)
return 0;
pr_err("fsg_num_buffers too high: %u\n", fsg_num_buffers);
return -EINVAL;
}
+ return -EINVAL;
+
if ((rc = fsg_alloc()) != 0)
return rc;
fsg = the_fsg;
diff --git a/drivers/usb/gadget/mass_storage.c
b/drivers/usb/gadget/mass_storage.c
index d3eb274..fa6dedf 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -179,6 +179,9 @@ MODULE_LICENSE("GPL");
static int __init msg_init(void)
{
+ if (!FSG_NUM_BUFFERS_IS_VALID(fsg_num_buffers))
+ return -EINVAL;
+
return usb_composite_probe(&msg_driver, msg_bind);
}
module_init(msg_init);
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 8c7b747..5f146da 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -360,6 +360,9 @@ static struct usb_composite_driver multi_driver = {
static int __init multi_init(void)
{
+ if (!FSG_NUM_BUFFERS_IS_VALID(fsg_num_buffers))
+ return -EINVAL;
+
return usb_composite_probe(&multi_driver, multi_bind);
}
module_init(multi_init);
I'd move the check from those two places to fsg_common_init().
Other then the above minor comments and buffers never being freed in
f_mass_storage.c, the code looks good to me.
--
Best regards, _ _
.o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o
..o | Computer Science, Michal "mina86" Nazarewicz (o o)
ooo +-----<email/xmpp: mnazarewicz@xxxxxxxxxx>-----ooO--(_)--Ooo--
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