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crypto: add error handling to claim function

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When adding RPC support, did some refactoring and totally missed
error handling in the claim function.  This patch adds it.

Addresses github issue #445≠

Change-Id: Ie2df279af7bfa3660a4a9fe2fd8bcbf7b5fd07fd
Signed-off-by: paul luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/427170
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
paul luse 2018-09-27 17:37:00 -04:00 committed by Jim Harris
parent 6de9698dec
commit b5c5d14506
1 changed files with 22 additions and 7 deletions
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29
lib/bdev/crypto/vbdev_crypto.c
View File

@ -128,7 +128,7 @@ static void _complete_internal_io(struct spdk_bdev_io *bdev_io, bool success, vo
static void _complete_internal_read(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg);
static void _complete_internal_write(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg);
static void vbdev_crypto_examine(struct spdk_bdev *bdev);
static void vbdev_crypto_claim(struct spdk_bdev *bdev);
static int vbdev_crypto_claim(struct spdk_bdev *bdev);
/* list of crypto_bdev names and their base bdevs via configuration file.
* Used so we can parse the conf once at init and use this list in examine().
@ -1128,7 +1128,11 @@ create_crypto_disk(const char *bdev_name, const char *vbdev_name,
return 0;
}
vbdev_crypto_claim(bdev);
rc = vbdev_crypto_claim(bdev);
if (rc) {
SPDK_ERRLOG("Error claiming bdev\n");
return rc;
}
rc = vbdev_crypto_init_crypto_drivers();
if (rc) {
@ -1319,12 +1323,12 @@ static struct spdk_bdev_module crypto_if = {
SPDK_BDEV_MODULE_REGISTER(&crypto_if)
static void
static int
vbdev_crypto_claim(struct spdk_bdev *bdev)
{
struct bdev_names *name;
struct vbdev_crypto *vbdev;
int rc;
int rc = 0;
/* Check our list of names from config versus this bdev and if
* there's a match, create the crypto_bdev & bdev accordingly.
@ -1338,7 +1342,8 @@ vbdev_crypto_claim(struct spdk_bdev *bdev)
vbdev = calloc(1, sizeof(struct vbdev_crypto));
if (!vbdev) {
SPDK_ERRLOG("could not allocate crypto_bdev\n");
break;
rc = -ENOMEM;
goto error_vbdev_alloc;
}
/* The base bdev that we're attaching to. */
@ -1346,18 +1351,21 @@ vbdev_crypto_claim(struct spdk_bdev *bdev)
vbdev->crypto_bdev.name = strdup(name->vbdev_name);
if (!vbdev->crypto_bdev.name) {
SPDK_ERRLOG("could not allocate crypto_bdev name\n");
rc = -ENOMEM;
goto error_bdev_name;
}
vbdev->key = strdup(name->key);
if (!vbdev->key) {
SPDK_ERRLOG("could not allocate crypto_bdev key\n");
rc = -ENOMEM;
goto error_alloc_key;
}
vbdev->drv_name = strdup(name->drv_name);
if (!vbdev->drv_name) {
SPDK_ERRLOG("could not allocate crypto_bdev drv_name\n");
rc = -ENOMEM;
goto error_drv_name;
}
@ -1404,7 +1412,7 @@ vbdev_crypto_claim(struct spdk_bdev *bdev)
SPDK_NOTICELOG("registered crypto_bdev for: %s\n", name->vbdev_name);
}
return;
return rc;
/* Error cleanup paths. */
error_claim:
@ -1419,6 +1427,8 @@ error_alloc_key:
free(vbdev->crypto_bdev.name);
error_bdev_name:
free(vbdev);
error_vbdev_alloc:
return rc;
}
/* RPC entry for deleting a crypto vbdev. */
@ -1465,7 +1475,12 @@ vbdev_crypto_examine(struct spdk_bdev *bdev)
struct vbdev_crypto *crypto_bdev, *tmp;
int rc;
vbdev_crypto_claim(bdev);
rc = vbdev_crypto_claim(bdev);
if (rc) {
SPDK_ERRLOG("could not claim bdev\n");
spdk_bdev_module_examine_done(&crypto_if);
return;
}
TAILQ_FOREACH_SAFE(crypto_bdev, &g_vbdev_crypto, link, tmp) {
if (strcmp(crypto_bdev->base_bdev->name, bdev->name) == 0) {