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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4694-drm-amd-display-Return-a-correct-error-value.patch47
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4694-drm-amd-display-Return-a-correct-error-value.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4694-drm-amd-display-Return-a-correct-error-value.patch
new file mode 100644
index 00000000..e024377a
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4694-drm-amd-display-Return-a-correct-error-value.patch
@@ -0,0 +1,47 @@
+From 1fecf0d6ffc9c8935672cacb6f2ccbdbbea1afaa Mon Sep 17 00:00:00 2001
+From: Mikita Lipski <mikita.lipski@amd.com>
+Date: Tue, 12 Nov 2019 13:58:32 -0500
+Subject: [PATCH 4694/4736] drm/amd/display: Return a correct error value
+
+[why]
+The function is expected to return instance of the timing generator
+therefore we shouldn't be returning boolean in integer function,
+and we shouldn't be returning zero so changing it to -1.
+
+Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
+Reviewed-by: Martin Leung <Martin.Leung@amd.com>
+Acked-by: Anthony Koo <Anthony.Koo@amd.com>
+Acked-by: Leo Li <sunpeng.li@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+index fd9358c11222..d4273527a371 100644
+--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
++++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+@@ -1870,7 +1870,7 @@ static int acquire_resource_from_hw_enabled_state(
+ inst = link->link_enc->funcs->get_dig_frontend(link->link_enc);
+
+ if (inst == ENGINE_ID_UNKNOWN)
+- return false;
++ return -1;
+
+ for (i = 0; i < pool->stream_enc_count; i++) {
+ if (pool->stream_enc[i]->id == inst) {
+@@ -1882,10 +1882,10 @@ static int acquire_resource_from_hw_enabled_state(
+
+ // tg_inst not found
+ if (i == pool->stream_enc_count)
+- return false;
++ return -1;
+
+ if (tg_inst >= pool->timing_generator_count)
+- return false;
++ return -1;
+
+ if (!res_ctx->pipe_ctx[tg_inst].stream) {
+ struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[tg_inst];
+--
+2.17.1
+