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commitc06acf7143upstream. The target can send the MDB byte followed by additional data bytes. The readl on MRDATAB reads one actual byte, but the readsl advances the destination pointer by 4 bytes. This causes the subsequent payload to be copied to wrong position in the destination buffer. Cc: stable@kernel.org Fixes:dd3c52846d("i3c: master: svc: Add Silvaco I3C master driver") Signed-off-by: Stanley Chu <yschu@nuvoton.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250318053606.3087121-3-yschu@nuvoton.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>