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rk fb: do something when user set invalid config

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Signed-off-by: hjc <hjc@rock-chips.com>
This commit is contained in:
hjc
2015-04-13 11:13:32 +08:00
parent 92ad83ba00
commit 514c54f85c
1 changed files with 10 additions and 0 deletions
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10
drivers/video/rockchip/rk_fb.c
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@@ -2196,6 +2196,9 @@ static int rk_fb_set_win_config(struct fb_info *info,
}
}
if (regs->win_num <= 0)
goto err_null_frame;
mutex_lock(&dev_drv->output_lock);
dev_drv->timeline_max++;
@@ -2266,6 +2269,13 @@ static int rk_fb_set_win_config(struct fb_info *info,
err:
mutex_unlock(&dev_drv->output_lock);
return ret;
err_null_frame:
kfree(regs);
for (j = 0; j < RK_MAX_BUF_NUM; j++)
win_data->rel_fence_fd[j] = -1;
win_data->ret_fence_fd = -1;
pr_info("win num = %d,null frame\n", regs->win_num);
return 0;
}
#if 1