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From d7f31079c6511e1c3092338095633ae89c744ad0 Mon Sep 17 00:00:00 2001
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From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
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Date: Fri, 19 Apr 2013 15:09:15 +0200
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Subject: [PATCH 327/482] * grub-core/commands/videotest.c
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(grub_cmd_videotest): Fix error handling when creating text_layer
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failed. * grub-core/video/video.c (grub_video_create_render_target):
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Set result to 0 on error. (grub_video_delete_render_target): Do not
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dereference NULL.
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---
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ChangeLog | 8 ++++++++
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grub-core/commands/videotest.c | 8 ++++----
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grub-core/video/video.c | 3 +++
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3 files changed, 15 insertions(+), 4 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index 3799129..3d4b23d 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,5 +1,13 @@
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2013-04-19 Vladimir Serbinenko <phcoder@gmail.com>
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+ * grub-core/commands/videotest.c (grub_cmd_videotest): Fix error
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+ handling when creating text_layer failed.
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+ * grub-core/video/video.c (grub_video_create_render_target):
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+ Set result to 0 on error.
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+ (grub_video_delete_render_target): Do not dereference NULL.
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+
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+2013-04-19 Vladimir Serbinenko <phcoder@gmail.com>
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+
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* grub-core/kern/elfXX.c (grub_elfXX_load): Handle
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GRUB_ELF_LOAD_FLAGS_30BITS and GRUB_ELF_LOAD_FLAGS_62BITS.
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* grub-core/loader/powerpc/ieee1275/linux.c (grub_linux_load32),
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diff --git a/grub-core/commands/videotest.c b/grub-core/commands/videotest.c
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index 2e4b3a2..2256237 100644
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--- a/grub-core/commands/videotest.c
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+++ b/grub-core/commands/videotest.c
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@@ -71,10 +71,10 @@ grub_cmd_videotest (grub_command_t cmd __attribute__ ((unused)),
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grub_font_t fixed;
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struct grub_font_glyph *glyph;
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- grub_video_create_render_target (&text_layer, width, height,
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- GRUB_VIDEO_MODE_TYPE_RGB
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- | GRUB_VIDEO_MODE_TYPE_ALPHA);
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- if (!text_layer)
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+ if (grub_video_create_render_target (&text_layer, width, height,
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+ GRUB_VIDEO_MODE_TYPE_RGB
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+ | GRUB_VIDEO_MODE_TYPE_ALPHA)
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+ || !text_layer)
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goto fail;
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grub_video_set_active_render_target (text_layer);
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diff --git a/grub-core/video/video.c b/grub-core/video/video.c
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index aab9b18..844f36c 100644
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--- a/grub-core/video/video.c
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+++ b/grub-core/video/video.c
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@@ -339,6 +339,7 @@ grub_video_create_render_target (struct grub_video_render_target **result,
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unsigned int width, unsigned int height,
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unsigned int mode_type)
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{
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+ *result = 0;
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if (! grub_video_adapter_active)
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return grub_error (GRUB_ERR_BAD_DEVICE, "no video mode activated");
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@@ -351,6 +352,8 @@ grub_video_create_render_target (struct grub_video_render_target **result,
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grub_err_t
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grub_video_delete_render_target (struct grub_video_render_target *target)
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{
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+ if (!target)
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+ return GRUB_ERR_NONE;
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if (! grub_video_adapter_active)
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return grub_error (GRUB_ERR_BAD_DEVICE, "no video mode activated");
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--
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1.8.2.1
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