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close file descriptor (#1353)

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* close file descriptor

* check return value
This commit is contained in:
Dean Lee
2020-04-14 06:09:48 +08:00
committed by GitHub
parent 789764945c
commit 2fc3247343
1 changed files with 5 additions and 2 deletions
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7
selfdrive/common/framebuffer.cc
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@@ -126,8 +126,11 @@ extern "C" FramebufferState* framebuffer_init(
// set brightness
int brightness_fd = open(BACKLIGHT_CONTROL, O_RDWR);
const char brightness_level[] = BACKLIGHT_LEVEL;
write(brightness_fd, brightness_level, strlen(brightness_level));
if (brightness_fd != -1){
const char brightness_level[] = BACKLIGHT_LEVEL;
write(brightness_fd, brightness_level, strlen(brightness_level));
close(brightness_fd);
}
if (out_w) *out_w = w;
if (out_h) *out_h = h;