3.10-stable review patch. If anyone has any objections, please let me know.
------------------ From: Alex Deucher <alexander.deuc...@amd.com> commit c2b4cacfe9816c1fe378c785ce8a678cf0635ec6 upstream. Prevents a segfault if an afmt block is not assigned to the encoder such as in the LVDS or eDP case. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=66714 Signed-off-by: Alex Deucher <alexander.deuc...@amd.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/gpu/drm/radeon/evergreen_hdmi.c | 6 ++++++ drivers/gpu/drm/radeon/r600_hdmi.c | 6 ++++++ 2 files changed, 12 insertions(+) --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -177,6 +177,9 @@ void evergreen_hdmi_setmode(struct drm_e uint32_t offset; ssize_t err; + if (!dig || !dig->afmt) + return; + /* Silent, r600_hdmi_enable will raise WARN for us */ if (!dig->afmt->enabled) return; @@ -280,6 +283,9 @@ void evergreen_hdmi_enable(struct drm_en struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + if (!dig || !dig->afmt) + return; + /* Silent, r600_hdmi_enable will raise WARN for us */ if (enable && dig->afmt->enabled) return; --- a/drivers/gpu/drm/radeon/r600_hdmi.c +++ b/drivers/gpu/drm/radeon/r600_hdmi.c @@ -266,6 +266,9 @@ void r600_hdmi_setmode(struct drm_encode uint32_t offset; ssize_t err; + if (!dig || !dig->afmt) + return; + /* Silent, r600_hdmi_enable will raise WARN for us */ if (!dig->afmt->enabled) return; @@ -448,6 +451,9 @@ void r600_hdmi_enable(struct drm_encoder struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; u32 hdmi = HDMI0_ERROR_ACK; + if (!dig || !dig->afmt) + return; + /* Silent, r600_hdmi_enable will raise WARN for us */ if (enable && dig->afmt->enabled) return; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
