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[S390] drivers/s390/block/dasd_eckd.c: add missing dasd_sfree_request 

Extend some error paths to call dasd_sfree_request as done earlier in the
function.  The error-handling code is also moved to the end of the function.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Julia Lawall 2012-04-11 14:28:04 +02:00 committed by Martin Schwidefsky
parent 923e9a1399
commit cd10502b82
1 changed files with 16 additions and 8 deletions
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24
drivers/s390/block/dasd_eckd.c
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@ -2844,6 +2844,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
sector_t recid, trkid;
unsigned int offs;
unsigned int count, count_to_trk_end;
int ret;
basedev = block->base;
if (rq_data_dir(req) == READ) {
@ -2884,8 +2885,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
itcw = itcw_init(cqr->data, itcw_size, itcw_op, 0, ctidaw, 0);
if (IS_ERR(itcw)) {
dasd_sfree_request(cqr, startdev);
return ERR_PTR(-EINVAL);
ret = -EINVAL;
goto out_error;
}
cqr->cpaddr = itcw_get_tcw(itcw);
if (prepare_itcw(itcw, first_trk, last_trk,
@ -2897,8 +2898,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
/* Clock not in sync and XRC is enabled.
* Try again later.
*/
dasd_sfree_request(cqr, startdev);
return ERR_PTR(-EAGAIN);
ret = -EAGAIN;
goto out_error;
}
len_to_track_end = 0;
/*
@ -2937,8 +2938,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
tidaw_flags = 0;
last_tidaw = itcw_add_tidaw(itcw, tidaw_flags,
dst, part_len);
if (IS_ERR(last_tidaw))
return ERR_PTR(-EINVAL);
if (IS_ERR(last_tidaw)) {
ret = -EINVAL;
goto out_error;
}
dst += part_len;
}
}
@ -2947,8 +2950,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
dst = page_address(bv->bv_page) + bv->bv_offset;
last_tidaw = itcw_add_tidaw(itcw, 0x00,
dst, bv->bv_len);
if (IS_ERR(last_tidaw))
return ERR_PTR(-EINVAL);
if (IS_ERR(last_tidaw)) {
ret = -EINVAL;
goto out_error;
}
}
}
last_tidaw->flags |= TIDAW_FLAGS_LAST;
@ -2968,6 +2973,9 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
cqr->buildclk = get_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
out_error:
dasd_sfree_request(cqr, startdev);
return ERR_PTR(ret);
}
static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,