[PATCH] spi: pxa2xx: Handle return value of clk_prepare_enable

[Arvind Yadav]

clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
 drivers/spi/spi-pxa2xx.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 47b65d7..e9c0fe5 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1676,7 +1676,11 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
        }
 
        /* Enable SOC clock */
-       clk_prepare_enable(ssp->clk);
+       status = clk_prepare_enable(ssp->clk);
+       if (status) {
+               dev_err(&pdev->dev, "Failed to prepare clock\n");
+               goto out_error_master_alloc;
+       }
 
        master->max_speed_hz = clk_get_rate(ssp->clk);
 
@@ -1855,8 +1859,13 @@ static int pxa2xx_spi_resume(struct device *dev)
        int status;
 
        /* Enable the SSP clock */
-       if (!pm_runtime_suspended(dev))
-               clk_prepare_enable(ssp->clk);
+       if (!pm_runtime_suspended(dev)) {
+               status = clk_prepare_enable(ssp->clk);
+               if (status) {
+                       dev_err(dev, "Failed to prepare clock\n");
+                       return status;
+               }
+       }
 
        /* Restore LPSS private register bits */
        if (is_lpss_ssp(drv_data))
@@ -1886,8 +1895,7 @@ static int pxa2xx_spi_runtime_resume(struct device *dev)
 {
        struct driver_data *drv_data = dev_get_drvdata(dev);
 
-       clk_prepare_enable(drv_data->ssp->clk);
-       return 0;
+       return clk_prepare_enable(drv_data->ssp->clk);
 }
 #endif
 
-- 
1.9.1