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author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2021-01-09 15:43:08 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-27 13:05:38 +0300 |
commit | 97db41d7c828c8e20f6d7444f7464a98f63f5aa8 (patch) | |
tree | 2c123f2c73d1b7c6b3491e99e9b28a160f46d175 | |
parent | 3c47d977b73469fcb50e73fb8cd7a40808d025a9 (diff) | |
download | linux-97db41d7c828c8e20f6d7444f7464a98f63f5aa8.tar.xz |
i2c: octeon: check correct size of maximum RECV_LEN packet
[ Upstream commit 1b2cfa2d1dbdcc3b6dba1ecb7026a537a1d7277f ]
I2C_SMBUS_BLOCK_MAX defines already the maximum number as defined in the
SMBus 2.0 specs. No reason to add one to it.
Fixes: 886f6f8337dd ("i2c: octeon: Support I2C_M_RECV_LEN")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Robert Richter <rric@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r-- | drivers/i2c/busses/i2c-octeon-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-octeon-core.c b/drivers/i2c/busses/i2c-octeon-core.c index d9607905dc2f..845eda70b8ca 100644 --- a/drivers/i2c/busses/i2c-octeon-core.c +++ b/drivers/i2c/busses/i2c-octeon-core.c @@ -347,7 +347,7 @@ static int octeon_i2c_read(struct octeon_i2c *i2c, int target, if (result) return result; if (recv_len && i == 0) { - if (data[i] > I2C_SMBUS_BLOCK_MAX + 1) + if (data[i] > I2C_SMBUS_BLOCK_MAX) return -EPROTO; length += data[i]; } |