[PATCH] clk: mediatek: fix memory leak on module removal#57
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Some MediaTek clock drivers do not call platform_set_drvdata() during probe(), but their remove() callback calls platform_get_drvdata(). This results in platform_get_drvdata() returning NULL, which leads to calling mtk_free_clk_data(NULL) -> kfree(NULL). Therefore, the actual clk_data is never released, causing a memory leak. Fix this by calling platform_set_drvdata() during probe. Fixes: 124294f ("clk: mediatek: mt8192: Move apmixedsys clock driver to its own file") Fixes: 4c02c9a ("clk: mediatek: mt8173: Break down clock drivers and allow module build") Fixes: 54b7026 ("clk: mediatek: mt8135-apmixedsys: Convert to platform_driver and module") Fixes: c50e2ea ("clk: mediatek: mt7622-apmixedsys: Add .remove() callback for module build") Fixes: 0d36328 ("clk: mediatek: Add MediaTek Helio X10 MT6795 clock drivers") Fixes: c6368ce ("clk: mediatek: mt2712-apmixedsys: Add .remove() callback for module build") Fixes: 838b863 ("clk: mediatek: mt7622: Move infracfg to clk-mt7622-infracfg.c") Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>
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Some MediaTek clock drivers do not call platform_set_drvdata() during probe(), but their remove() callback calls platform_get_drvdata(). This results in platform_get_drvdata() returning NULL, which leads to calling mtk_free_clk_data(NULL) -> kfree(NULL).
Therefore, the actual clk_data is never released, causing a memory leak.
Fix this by calling platform_set_drvdata() during probe.
Fixes: 124294f ("clk: mediatek: mt8192: Move apmixedsys clock driver to its own file")
Fixes: 4c02c9a ("clk: mediatek: mt8173: Break down clock drivers and allow module build")
Fixes: 54b7026 ("clk: mediatek: mt8135-apmixedsys: Convert to platform_driver and module")
Fixes: c50e2ea ("clk: mediatek: mt7622-apmixedsys: Add .remove() callback for module build")
Fixes: 0d36328 ("clk: mediatek: Add MediaTek Helio X10 MT6795 clock drivers")
Fixes: c6368ce ("clk: mediatek: mt2712-apmixedsys: Add .remove() callback for module build")
Fixes: 838b863 ("clk: mediatek: mt7622: Move infracfg to clk-mt7622-infracfg.c")