IS_ERR_VALUE macro should be used only with unsigned long type. For signed types comparison 'ret < 0' should be used.
The patch follows conclusion from discussion on LKML [1][2]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2120927 [2]: http://permalink.gmane.org/gmane.linux.kernel/2150581 Signed-off-by: Andrzej Hajda <[email protected]> --- drivers/video/fbdev/exynos/exynos_mipi_dsi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c index b527fe4..951b592 100644 --- a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c +++ b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c @@ -402,12 +402,12 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev) goto error; } - dsim->irq = platform_get_irq(pdev, 0); - if (IS_ERR_VALUE(dsim->irq)) { + ret = platform_get_irq(pdev, 0); + if (ret < 0) { dev_err(&pdev->dev, "failed to request dsim irq resource\n"); - ret = -EINVAL; goto error; } + dsim->irq = ret; init_completion(&dsim_wr_comp); init_completion(&dsim_rd_comp); -- 1.9.1
