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i3c: master: adi: Fix error propagation for CCCs

adi_i3c_master_send_ccc_cmd() always returned 0, ignoring the transfer
result populated in the completion path. As a consequence, CCC command
errors were silently dropped, including the default -ETIMEDOUT and
later overwritten by adi_i3c_master_end_xfer_locked().

Fix this by returning xfer->ret so that callers correctly receive any
transfer error codes.

Fixes: a79ac2cdc91d ("i3c: master: Add driver for Analog Devices I3C Controller IP")
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Jorge Marques <jorge.marques@analog.com>
Link: https://patch.msgid.link/20260323-ad4062-positive-error-fix-v3-5-30bdc68004be@analog.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

authored by

Jorge Marques and committed by
Alexandre Belloni 0b73da96 ef8b5229

+1 -1
+1 -1
drivers/i3c/master/adi-i3c-master.c
··· 361 361 362 362 cmd->err = adi_i3c_cmd_get_err(&xfer->cmds[0]); 363 363 364 - return 0; 364 + return xfer->ret; 365 365 } 366 366 367 367 static int adi_i3c_master_i3c_xfers(struct i3c_dev_desc *dev,