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authorJulia Lawall <julia@diku.dk>2010-05-22 12:26:22 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-11 01:35:34 +0400
commitbe8a058b50a90282d32aa638720195e1c327c569 (patch)
tree7424cb27031e7fd295810d856b1f265a91beb438 /Documentation/usb
parent37cd681c022a0a46ebcff025897a57457d3ca8cd (diff)
downloadlinux-be8a058b50a90282d32aa638720195e1c327c569.tar.xz
USB: gadget: Use memdup_user
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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