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Commit 50569ee3 authored Aug 08, 2016 by Krishna Chaitanya Devarakonda

msm: mdss: Fix potential NULL pointer dereferences



Fixing potential NULL pointer dereferences in MDSS driver.

Change-Id: Ibaa6b8adec966737b41c36f530ae88a968d5d5ed
Signed-off-by: Krishna Chaitanya Devarakonda <kdevarak@codeaurora.org>

parent 638d25fd

drivers/video/msm/mdss/mdss_debug.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -169,6 +169,7 @@ static ssize_t panel_debug_base_reg_write(struct file *file,
		break;
		}
		/* End of a hex value in given string */
		if ((bufp + NEXT_VALUE_OFFSET - 1) < (buf + count))
		bufp[NEXT_VALUE_OFFSET - 1] = 0;
		}
		if (len < PANEL_CMD_MIN_TX_COUNT) {

drivers/video/msm/mdss/mdss_mdp.c

+9 −6

Original line number	Diff line number	Diff line
		@@ -3234,12 +3234,15 @@ static int mdss_mdp_parse_dt_pipe(struct platform_device *pdev)
		mdata->has_panic_ctrl = of_property_read_bool(pdev->dev.of_node,
		"qcom,mdss-has-panic-ctrl");
		if (mdata->has_panic_ctrl) {
		if (mdata->vig_pipes)
		mdss_mdp_parse_dt_pipe_panic_ctrl(pdev,
		"qcom,mdss-pipe-vig-panic-ctrl-offsets",
		mdata->vig_pipes, mdata->nvig_pipes);
		if (mdata->rgb_pipes)
		mdss_mdp_parse_dt_pipe_panic_ctrl(pdev,
		"qcom,mdss-pipe-rgb-panic-ctrl-offsets",
		mdata->rgb_pipes, mdata->nrgb_pipes);
		if (mdata->dma_pipes)
		mdss_mdp_parse_dt_pipe_panic_ctrl(pdev,
		"qcom,mdss-pipe-dma-panic-ctrl-offsets",
		mdata->dma_pipes, mdata->ndma_pipes);