The patch titled
USB: don't try to kzalloc 0 bytes
has been removed from the -mm tree. Its filename was
usb-dont-try-to-kzalloc-0-bytes.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: USB: don't try to kzalloc 0 bytes
From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
This patch (as907) prevents us from trying to allocate 0 bytes
when an interface has no endpoint descriptors.
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/usb/core/config.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff -puN drivers/usb/core/config.c~usb-dont-try-to-kzalloc-0-bytes drivers/usb/core/config.c
--- a/drivers/usb/core/config.c~usb-dont-try-to-kzalloc-0-bytes
+++ a/drivers/usb/core/config.c
@@ -185,10 +185,12 @@ static int usb_parse_interface(struct de
num_ep = USB_MAXENDPOINTS;
}
- len = sizeof(struct usb_host_endpoint) * num_ep;
- alt->endpoint = kzalloc(len, GFP_KERNEL);
- if (!alt->endpoint)
- return -ENOMEM;
+ if (num_ep > 0) { /* Can't allocate 0 bytes */
+ len = sizeof(struct usb_host_endpoint) * num_ep;
+ alt->endpoint = kzalloc(len, GFP_KERNEL);
+ if (!alt->endpoint)
+ return -ENOMEM;
+ }
/* Parse all the endpoint descriptors */
n = 0;
_
Patches currently in -mm which might be from stern@xxxxxxxxxxxxxxxxxxx are
revert-gregkh-usb-usb-make-the-autosuspend-workqueue-thread-freezable.patch
fix-usb-ohci-subvendor-for-toshiba-portege-4000.patch
hisax-fix-error-checking-for-hisax_register.patch
usb-fix-suspend-to-ram.patch
-
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