tree dd85f8e867c66d720a9e2172878b0a550e3b34ea
parent 372a07302f2450d04e0b53058eb01a7e85025ec3
author Geert Uytterhoeven <geert@linux-m68k.org> 1418642751 +0100
committer David S. Miller <davem@davemloft.net> 1418662082 -0500

net: stmmac: sti: Fix uninitialized pointer dereference if !OF

If CONFIG_OF is not set:

drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c: In function ‘sti_dwmac_parse_data’:
drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c:318: warning: ‘rs’ is used uninitialized in this function

of_property_read_string() will return -ENOSYS in this case, and rs will
be an uninitialized pointer.

While the fallback clock selection is already selected correctly in this
case, the string comparisons should be skipped too, else the system will
crash while dereferencing the uninitialized pointer.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>