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authorMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-04-23 17:19:21 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-14 16:55:49 +0200
commit29fd79b6280b38872df092dc029b11e71a281d6d (patch)
tree61c0087102d9497057a29afe22b8a2638ae4a4d9 /kernel/panic.c
parentabdc89771018a436ca68bd2a34de661eddf05e5a (diff)
media: sti/bdisp: fix pm_runtime_get_sync() usage count
[ Upstream commit c44eac5b72e23c31eefc0e10a71d9650036b8341 ] The pm_runtime_get_sync() internally increments the dev->power.usage_count without decrementing it, even on errors. The bdisp_start_streaming() doesn't take it into account, which would unbalance PM usage counter at bdisp_stop_streaming(). The logic at bdisp_probe() is correct, but the best is to use the same call along the driver. So, 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, avoiding a potential PM usage counter leak. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/panic.c')
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