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Subject[PATCH -next] drm/bridge: cdns: Fix PM reference leak in cdns_dsi_transfer()
Date
pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
---
drivers/gpu/drm/bridge/cdns-dsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c b/drivers/gpu/drm/bridge/cdns-dsi.c
index 76373e3..b31281f 100644
--- a/drivers/gpu/drm/bridge/cdns-dsi.c
+++ b/drivers/gpu/drm/bridge/cdns-dsi.c
@@ -1028,7 +1028,7 @@ static ssize_t cdns_dsi_transfer(struct mipi_dsi_host *host,
struct mipi_dsi_packet packet;
int ret, i, tx_len, rx_len;

- ret = pm_runtime_get_sync(host->dev);
+ ret = pm_runtime_resume_and_get(host->dev);
if (ret < 0)
return ret;

--
2.6.2
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