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| author | Zou Wei <zou_wei@huawei.com> | 2021-05-24 15:21:02 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-19 08:53:09 +0200 |
| commit | c84e0757d80b097d73397fd8278ba8d96be7bfb9 (patch) | |
| tree | c67c52f90f30a24b0b28583c131ea3b9820822bb /drivers/gpu/drm | |
| parent | cdfd4ceafba921d649b3a4c347cbc3f5c62e7a79 (diff) | |
| download | linux-stable-c84e0757d80b097d73397fd8278ba8d96be7bfb9.tar.gz linux-stable-c84e0757d80b097d73397fd8278ba8d96be7bfb9.tar.bz2 linux-stable-c84e0757d80b097d73397fd8278ba8d96be7bfb9.zip | |
drm/bridge: cdns: Fix PM reference leak in cdns_dsi_transfer()
[ Upstream commit 33f90f27e1c5ccd648d3e78a1c28be9ee8791cf1 ]
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>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1621840862-106024-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/bridge/cdns-dsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c b/drivers/gpu/drm/bridge/cdns-dsi.c index 6166dca6be81..0cb9dd6986ec 100644 --- a/drivers/gpu/drm/bridge/cdns-dsi.c +++ b/drivers/gpu/drm/bridge/cdns-dsi.c @@ -1026,7 +1026,7 @@ 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; |