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SubjectRe: [PATCH 3/4] pinctrl: Add checks for empty names in pinmux_search_function
On Wed, Jan 25, 2012 at 11:08 PM, Tony Lindgren <> wrote:

> This is needed as otherwise we can get the following when dealing
> with buggy data in a pinmux driver for pinmux_search_function:
> Unable to handle kernel NULL pointer dereference at virtual address 00000000
> ...
> PC is at strcmp+0xc/0x34
> LR is at pinmux_get+0x350/0x8f4
> ...
> As we need pctldev initialized to call ops->list_functions, let's
> initialize it before check_ops calls and pass the pctldev to the
> check_ops functions. Do this for both pinmux and pinconf check_ops
> functions.
> Signed-off-by: Tony Lindgren <>

This looks correct to me, so applied it and pushed to -next
for testing.

Linus Walleij

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