Patch "fpga: machxo2-spi: Fix missing error code in machxo2_write_complete()" has been added to the 5.4-stable tree

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This is a note to let you know that I've just added the patch titled

    fpga: machxo2-spi: Fix missing error code in machxo2_write_complete()

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     fpga-machxo2-spi-fix-missing-error-code-in-machxo2_w.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit fca1adb69b87b5e9046197cc459efe6cbb81ac4d
Author: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
Date:   Fri Aug 13 14:40:42 2021 +0800

    fpga: machxo2-spi: Fix missing error code in machxo2_write_complete()
    
    [ Upstream commit a1e4470823d99e75b596748086e120dea169ed3c ]
    
    The error code is missing in this code scenario, add the error code
    '-EINVAL' to the return value 'ret'.
    
    Eliminate the follow smatch warning:
    
    drivers/fpga/machxo2-spi.c:341 machxo2_write_complete()
      warn: missing error code 'ret'.
    
    [mdf@xxxxxxxxxx: Reworded commit message]
    Fixes: 88fb3a002330 ("fpga: lattice machxo2: Add Lattice MachXO2 support")
    Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
    Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
    Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/fpga/machxo2-spi.c b/drivers/fpga/machxo2-spi.c
index 2fd097c3994b..37e54e375528 100644
--- a/drivers/fpga/machxo2-spi.c
+++ b/drivers/fpga/machxo2-spi.c
@@ -334,6 +334,7 @@ static int machxo2_write_complete(struct fpga_manager *mgr,
 			break;
 		if (++refreshloop == MACHXO2_MAX_REFRESH_LOOP) {
 			machxo2_cleanup(mgr);
+			ret = -EINVAL;
 			goto fail;
 		}
 	} while (1);



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