| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 010/210] soc: sunxi: sram: Actually claim SRAM regions | Date | Mon, 24 Oct 2022 13:28:47 +0200 |
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From: Samuel Holland <samuel@sholland.org>
[ Upstream commit fd362baad2e659ef0fb5652f023a606b248f1781 ]
sunxi_sram_claim() checks the sram_desc->claimed flag before updating the register, with the intent that only one device can claim a region. However, this was ineffective because the flag was never set.
Fixes: 4af34b572a85 ("drivers: soc: sunxi: Introduce SoC driver to map SRAMs") Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Link: https://lore.kernel.org/r/20220815041248.53268-4-samuel@sholland.org Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/soc/sunxi/sunxi_sram.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c index 882be5ed7e84..97bb4d8007ff 100644 --- a/drivers/soc/sunxi/sunxi_sram.c +++ b/drivers/soc/sunxi/sunxi_sram.c @@ -253,6 +253,7 @@ int sunxi_sram_claim(struct device *dev) writel(val | ((device << sram_data->offset) & mask), base + sram_data->reg); + sram_desc->claimed = true; spin_unlock(&sram_lock); return 0; -- 2.35.1
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