<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr">
<p style="margin-top:0;margin-bottom:0"><span>Reviewed-by: Rex Zhu<rezhu@amd.com> </span></p>
<p style="margin-top:0;margin-bottom:0"><span><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span>Best Regards </span></p>
<p style="margin-top:0;margin-bottom:0"><span>Rex</span><br>
</p>
<br>
<br>
<div style="color: rgb(0, 0, 0);">
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Alex Deucher <alexdeucher@gmail.com><br>
<b>Sent:</b> Wednesday, May 30, 2018 10:37 PM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org<br>
<b>Cc:</b> Deucher, Alexander<br>
<b>Subject:</b> [PATCH] drm/amdgpu/display: check if ppfuncs exists before using it</font>
<div> </div>
</div>
<div class="BodyFragment"><font size="2"><span style="font-size:11pt;">
<div class="PlainText">Fixes a crash on asics without powerplay yet (e.g., vega20).<br>
<br>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com><br>
---<br>
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c | 2 +-<br>
1 file changed, 1 insertion(+), 1 deletion(-)<br>
<br>
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c<br>
index d5e6b45fd6e6..5a3346124a01 100644<br>
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c<br>
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c<br>
@@ -343,7 +343,7 @@ bool dm_pp_get_clock_levels_by_type_with_latency(<br>
struct pp_clock_levels_with_latency pp_clks = { 0 };<br>
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;<br>
<br>
- if (!pp_funcs->get_clock_by_type_with_latency)<br>
+ if (!pp_funcs || !pp_funcs->get_clock_by_type_with_latency)<br>
return false;<br>
<br>
if (pp_funcs->get_clock_by_type_with_latency(pp_handle,<br>
-- <br>
2.13.6<br>
<br>
_______________________________________________<br>
amd-gfx mailing list<br>
amd-gfx@lists.freedesktop.org<br>
<a href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" id="LPlnk671284" class="OWAAutoLink" previewremoved="true">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a>
<div id="LPBorder_GT_15276979449630.160472346261602" style="margin-bottom: 20px; overflow: auto; width: 100%; text-indent: 0px;">
<table id="LPContainer_15276979449600.36444457568079036" role="presentation" cellspacing="0" style="width: 90%; background-color: rgb(255, 255, 255); position: relative; overflow: auto; padding-top: 20px; padding-bottom: 20px; margin-top: 20px; border-top: 1px dotted rgb(200, 200, 200); border-bottom: 1px dotted rgb(200, 200, 200);">
<tbody>
<tr valign="top" style="border-spacing: 0px;">
<td id="TextCell_15276979449610.0640851903284907" colspan="2" style="vertical-align: top; position: relative; padding: 0px; display: table-cell;">
<div id="LPRemovePreviewContainer_15276979449610.9546222375892015"></div>
<div id="LPTitle_15276979449620.9489138183768109" style="top: 0px; color: rgb(0, 120, 215); font-weight: normal; font-size: 21px; font-family: wf_segoe-ui_light, "Segoe UI Light", "Segoe WP Light", "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; line-height: 21px;">
<a id="LPUrlAnchor_15276979449620.8939398329651733" href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" target="_blank" style="text-decoration: none;">amd-gfx Info Page - freedesktop.org</a></div>
<div id="LPMetadata_15276979449620.9421895681139674" style="margin: 10px 0px 16px; color: rgb(102, 102, 102); font-weight: normal; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; font-size: 14px; line-height: 14px;">
lists.freedesktop.org</div>
<div id="LPDescription_15276979449630.24660085742545101" style="display: block; color: rgb(102, 102, 102); font-weight: normal; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; font-size: 14px; line-height: 20px; max-height: 100px; overflow: hidden;">
Subscribing to amd-gfx: Subscribe to amd-gfx by filling out the following form. Use of all freedesktop.org lists is subject to our Code of Conduct.</div>
</td>
</tr>
</tbody>
</table>
</div>
<br>
<br>
</div>
</span></font></div>
</div>
</div>
</body>
</html>