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firmware: meson_sm: stop using 0 as NULL pointer

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Use NULL for NULL pointer to fix the following sparse warning:
drivers/firmware/meson/meson_sm.c:85:24: sparse: warning: Using plain integer as NULL pointer

Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230110031242.4917-1-miles.chen@mediatek.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Miles Chen
2023-01-10 11:12:42 +08:00
committed by Neil Armstrong
parent bc5998b92b
commit fcdc53acee
1 changed files with 1 additions and 1 deletions
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2
drivers/firmware/meson/meson_sm.c
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@@ -82,7 +82,7 @@ static void __iomem *meson_sm_map_shmem(u32 cmd_shmem, unsigned int size)
sm_phy_base = __meson_sm_call(cmd_shmem, 0, 0, 0, 0, 0);
if (!sm_phy_base)
return 0;
return NULL;
return ioremap_cache(sm_phy_base, size);
}