Messages in this thread Patch in this message | | | From | Mauro Carvalho Chehab <> | Subject | [PATCH v3 13/79] media: s5p: fix pm_runtime_get_sync() usage count | Date | Tue, 27 Apr 2021 12:26:03 +0200 |
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The pm_runtime_get_sync() internally increments the dev->power.usage_count without decrementing it, even on errors. Replace it by the new pm_runtime_resume_and_get(), introduced by: commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter") in order to properly decrement the usage counter and avoid memory leaks.
While here, check if the PM runtime error was caught at s5p_cec_adap_enable().
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> --- drivers/media/cec/platform/s5p/s5p_cec.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/platform/s5p/s5p_cec.c index 2a3e7ffefe0a..2250c1cbc64e 100644 --- a/drivers/media/cec/platform/s5p/s5p_cec.c +++ b/drivers/media/cec/platform/s5p/s5p_cec.c @@ -35,10 +35,13 @@ MODULE_PARM_DESC(debug, "debug level (0-2)"); static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable) { + int ret; struct s5p_cec_dev *cec = cec_get_drvdata(adap); if (enable) { - pm_runtime_get_sync(cec->dev); + ret = pm_runtime_resume_and_get(cec->dev); + if (ret < 0) + return ret; s5p_cec_reset(cec); -- 2.30.2
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