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authorVitaly Kuznetsov <vkuznets@redhat.com>2015-03-31 11:16:41 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-03 16:20:12 +0200
commit797f88c987b02a8de8d4fac94ec2877b92ec35a2 (patch)
treea4bb69aa6bab4b4af5778bb59e94bfcd68aa138f /sound
parentba0c444153889a9b672974d85a4a57a8eeb49fe3 (diff)
downloadlinux-797f88c987b02a8de8d4fac94ec2877b92ec35a2.tar.bz2
Drivers: hv: hv_balloon: correctly handle num_pages>INT_MAX case
balloon_wrk.num_pages is __u32 and it comes from host in struct dm_balloon where it is also __u32. We, however, use 'int' in balloon_up() and in case we happen to receive num_pages>INT_MAX request we'll end up allocating zero pages as 'num_pages < alloc_unit' check in alloc_balloon_pages() will pass. Change num_pages type to unsigned int. In real life ballooning request come with num_pages in [512, 32768] range so this is more a future-proof/cleanup. Reported-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
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