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ARM: omap2+: hwmod: fix potential NULL pointer access
commit b070f9c upstream. omap_hwmod_get_pwrdm() may access a NULL clk_hw pointer in some failure cases. Add a check for the case and bail out gracely if this happens. Reported-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Cc: stable@vger.kernel.org # v5.10+ Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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