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usb: usbtest: Remove stack VLA usage 

The kernel would like to have all stack VLA usage removed[1].  We
already have a pre-processor constant defined MAX_SGLEN.  We can use
this instead of the variable param-sglen.

[1]: https://lkml.org/lkml/2018/3/7/621

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tobin C. Harding 2018-03-09 17:11:14 +11:00 committed by Greg Kroah-Hartman
parent cc9debf84a
commit c53439fbd1
1 changed files with 4 additions and 1 deletions
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5
drivers/usb/misc/usbtest.c
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@ -2028,11 +2028,14 @@ test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param,
unsigned i;
unsigned long packets = 0;
int status = 0;
struct urb *urbs[param->sglen];
struct urb *urbs[MAX_SGLEN];
if (!param->sglen || param->iterations > UINT_MAX / param->sglen)
return -EINVAL;
if (param->sglen > MAX_SGLEN)
return -EINVAL;
memset(&context, 0, sizeof(context));
context.count = param->iterations * param->sglen;
context.dev = dev;