From 4d27b2ca154eff58f4d7f34e4cd374c1070a56fc Mon Sep 17 00:00:00 2001 From: =?utf8?q?Lothar=20Wa=C3=9Fmann?= Date: Tue, 25 Dec 2012 15:58:37 +0100 Subject: [PATCH] staging: drm/imx: check return value of ipu_reset() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit ipu_reset() can fail with a timeout. Check the return value and act appropriately. Signed-off-by: Lothar Waßmann Acked-by: Sascha Hauer Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/ipu-v3/ipu-common.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c index 677e665ca86d..f7059cddd7fd 100644 --- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c +++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c @@ -1104,7 +1104,9 @@ static int ipu_probe(struct platform_device *pdev) if (ret) goto out_failed_irq; - ipu_reset(ipu); + ret = ipu_reset(ipu); + if (ret) + goto out_failed_reset; /* Set MCU_T to divide MCU access window into 2 */ ipu_cm_write(ipu, 0x00400000L | (IPU_MCU_T_DEFAULT << 18), @@ -1129,6 +1131,7 @@ failed_add_clients: ipu_submodules_exit(ipu); failed_submodules_init: ipu_irq_exit(ipu); +out_failed_reset: out_failed_irq: clk_disable_unprepare(ipu->clk); failed_clk_get: -- 2.30.2