Jaehoon Kim 54ccd92b79 s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request ...

commit 8f4ed0ce48 upstream.

Currently, if CCW request creation fails with -EINVAL, the DASD driver
returns BLK_STS_IOERR to the block layer.

This can happen, for example, when a user-space application such as QEMU
passes a misaligned buffer, but the original cause of the error is
masked as a generic I/O error.

This patch changes the behavior so that -EINVAL is returned as
BLK_STS_INVAL, allowing user space to properly detect alignment issues
instead of interpreting them as I/O errors.

Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Cc: stable@vger.kernel.org #6.11+
Signed-off-by: Jaehoon Kim <jhkim@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-10-19 16:33:57 +02:00

..

block

s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request

2025-10-19 16:33:57 +02:00

char

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cio

s390/cio: Update purge function to unregister the unused subchannels

2025-10-19 16:33:39 +02:00

crypto

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net

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scsi

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virtio

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Makefile

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