Commit a77f5db3 authored by Ben Hutchings's avatar Ben Hutchings Committed by David S. Miller
Browse files

ethtool: Allocate register dump buffer with vmalloc()



Some NICs have huge register files which exceed the maximum heap
allocation size.
Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6099e3de
......@@ -815,7 +815,7 @@ static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
if (regs.len > reglen)
regs.len = reglen;
regbuf = kmalloc(reglen, GFP_USER);
regbuf = vmalloc(reglen);
if (!regbuf)
return -ENOMEM;
......@@ -830,7 +830,7 @@ static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
ret = 0;
out:
kfree(regbuf);
vfree(regbuf);
return ret;
}
......
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