| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.5 061/101] regmap: spmi: Fix regmap_spmi_ext_read in multi-byte case | Date | Mon, 16 May 2016 18:21:06 -0700 |
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4.5-stable review patch. If anyone has any objections, please let me know.
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From: Jack Pham <jackp@codeaurora.org>
commit dec8e8f6e6504aa3496c0f7cc10c756bb0e10f44 upstream.
Specifically for the case of reads that use the Extended Register Read Long command, a multi-byte read operation is broken up into 8-byte chunks. However the call to spmi_ext_register_readl() is incorrectly passing 'val_size', which if greater than 8 will always fail. The argument should instead be 'len'.
Fixes: c9afbb05a9ff ("regmap: spmi: support base and extended register spaces") Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/base/regmap/regmap-spmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/base/regmap/regmap-spmi.c +++ b/drivers/base/regmap/regmap-spmi.c @@ -142,7 +142,7 @@ static int regmap_spmi_ext_read(void *co while (val_size) { len = min_t(size_t, val_size, 8); - err = spmi_ext_register_readl(context, addr, val, val_size); + err = spmi_ext_register_readl(context, addr, val, len); if (err) goto err_out;
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