6.1-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter dan.carpenter@linaro.org
[ Upstream commit 6a1d4c7976dd1ee7c9f80bc8e62801ec7b1f2f58 ]
The irq_of_parse_and_map() function returns zero on error. It never returns negative error codes. Fix the check.
Fixes: a689554ba6ed ("drm/msm: Initial add DSI connector support") Signed-off-by: Dan Carpenter dan.carpenter@linaro.org Reviewed-by: Konrad Dybcio konrad.dybcio@linaro.org Reviewed-by: Abhinav Kumar quic_abhinavk@quicinc.com Patchwork: https://patchwork.freedesktop.org/patch/557715/ Link: https://lore.kernel.org/r/4f3c5c98-04f7-43f7-900f-5d7482c83eef@moroto.mounta... Signed-off-by: Abhinav Kumar quic_abhinavk@quicinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/dsi/dsi_host.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 6c1ebeb9023eb..e20cd3dd2c6cc 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1972,10 +1972,9 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi) }
msm_host->irq = irq_of_parse_and_map(pdev->dev.of_node, 0); - if (msm_host->irq < 0) { - ret = msm_host->irq; - dev_err(&pdev->dev, "failed to get irq: %d\n", ret); - return ret; + if (!msm_host->irq) { + dev_err(&pdev->dev, "failed to get irq\n"); + return -EINVAL; }
/* do not autoenable, will be enabled later */