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config-parser: Avoid null dereference when handling config-parser ( when weston starts without config file. )

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backtrace:
 (gdb) bt
 #0  weston_config_next_section (config=0x0, section=0xbfb2b608, name=0xbfb2b618) at config-parser.c:485
 #1  0xb75b1371 in x11_compositor_create (config=0x1, argv=0xbfb2ba44, argc=<optimized out>, use_pixman=0, no_input=0, fullscreen=0, display=0xb75b55f9)
    at compositor-x11.c:1582
 #2  backend_init (display=0x8354490, argc=0xbfb2b9b0, argv=0xbfb2ba44, config=0x0) at compositor-x11.c:1674
 #3  0x0804df7b in main (argc=1, argv=0xbfb2ba44) at compositor.c:3289
This commit is contained in:
Mun Gwan-gyeong 2013-05-28 00:04:26 +09:00 committed by Kristian Høgsberg
parent edddbd14ac
commit 151a52834e
1 changed files with 3 additions and 0 deletions
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3
shared/config-parser.c
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@ -481,6 +481,9 @@ weston_config_next_section(struct weston_config *config,
struct weston_config_section **section,
const char **name)
{
if (config == NULL)
return 0;
if (*section == NULL)
*section = container_of(config->section_list.next,
struct weston_config_section, link);