Patch "mei: bus-fixup:upon error print return values of send and receive" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    mei: bus-fixup:upon error print return values of send and receive

to the 5.15-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:
     mei-bus-fixup-upon-error-print-return-values-of-send.patch
and it can be found in the queue-5.15 subdirectory.

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



commit c20c065b3bb735ae34941b6c3d5fae58c508e0ea
Author: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Date:   Mon Dec 12 23:49:33 2022 +0200

    mei: bus-fixup:upon error print return values of send and receive
    
    [ Upstream commit 4b8659e2c258e4fdac9ccdf06cc20c0677894ef9 ]
    
    For easier debugging, upon error, print also return values
    from __mei_cl_recv() and __mei_cl_send() functions.
    
    Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
    Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
    Link: https://lore.kernel.org/r/20221212214933.275434-1-tomas.winkler@xxxxxxxxx
    Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c
index 67844089db216..9d082287dbe02 100644
--- a/drivers/misc/mei/bus-fixup.c
+++ b/drivers/misc/mei/bus-fixup.c
@@ -175,7 +175,7 @@ static int mei_fwver(struct mei_cl_device *cldev)
 	ret = __mei_cl_send(cldev->cl, (u8 *)&req, sizeof(req), 0,
 			    MEI_CL_IO_TX_BLOCKING);
 	if (ret < 0) {
-		dev_err(&cldev->dev, "Could not send ReqFWVersion cmd\n");
+		dev_err(&cldev->dev, "Could not send ReqFWVersion cmd ret = %d\n", ret);
 		return ret;
 	}
 
@@ -187,7 +187,7 @@ static int mei_fwver(struct mei_cl_device *cldev)
 		 * Should be at least one version block,
 		 * error out if nothing found
 		 */
-		dev_err(&cldev->dev, "Could not read FW version\n");
+		dev_err(&cldev->dev, "Could not read FW version ret = %d\n", bytes_recv);
 		return -EIO;
 	}
 
@@ -337,7 +337,7 @@ static int mei_nfc_if_version(struct mei_cl *cl,
 	ret = __mei_cl_send(cl, (u8 *)&cmd, sizeof(cmd), 0,
 			    MEI_CL_IO_TX_BLOCKING);
 	if (ret < 0) {
-		dev_err(bus->dev, "Could not send IF version cmd\n");
+		dev_err(bus->dev, "Could not send IF version cmd ret = %d\n", ret);
 		return ret;
 	}
 
@@ -352,7 +352,7 @@ static int mei_nfc_if_version(struct mei_cl *cl,
 	bytes_recv = __mei_cl_recv(cl, (u8 *)reply, if_version_length, &vtag,
 				   0, 0);
 	if (bytes_recv < 0 || (size_t)bytes_recv < if_version_length) {
-		dev_err(bus->dev, "Could not read IF version\n");
+		dev_err(bus->dev, "Could not read IF version ret = %d\n", bytes_recv);
 		ret = -EIO;
 		goto err;
 	}