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gpt: fixed error-handling path for initializing gpt module

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This patch also releases bdev module and closes claiming descriptor on
regular split base destruction.

These problems must've been overlooked in patches 26d6770f and be9a3b9f.

Fixes: 26d6770f1c61 ("GPT: add GPT bdev support")
Fixes: be9a3b9f6955 ("bdev: pass descriptors for I/O operations")

Change-Id: Ib47e2c4d3b99c6d3f2dbe7ef01be81ca3dd97341
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/370181
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This commit is contained in:
Dariusz Stojaczyk 2017-07-18 20:21:53 +02:00 committed by Daniel Verkamp
parent 02a4d6cb41
commit 6a0e8d7ae9
1 changed files with 12 additions and 16 deletions
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28
lib/bdev/gpt/vbdev_gpt.c
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@ -82,14 +82,13 @@ static bool g_gpt_disabled;
static void
spdk_gpt_bdev_free(struct spdk_gpt_bdev *gpt_bdev)
{
if (!gpt_bdev) {
return;
assert(gpt_bdev->ch == NULL);
assert(gpt_bdev->bdev);
assert(gpt_bdev->bdev_desc);
if (gpt_bdev->bdev->claim_module == SPDK_GET_BDEV_MODULE(gpt)) {
spdk_bdev_module_release_bdev(gpt_bdev->bdev);
}
if (gpt_bdev->ch) {
spdk_put_io_channel(gpt_bdev->ch);
}
spdk_bdev_close(gpt_bdev->bdev_desc);
spdk_dma_free(gpt_bdev->gpt.buf);
free(gpt_bdev);
}
@ -113,8 +112,8 @@ spdk_gpt_base_bdev_init(struct spdk_bdev *bdev)
gpt = &gpt_bdev->gpt;
gpt->buf = spdk_dma_zmalloc(SPDK_GPT_BUFFER_SIZE, 0x1000, NULL);
if (!gpt->buf) {
spdk_gpt_bdev_free(gpt_bdev);
SPDK_ERRLOG("Cannot alloc buf\n");
free(gpt_bdev);
return NULL;
}
@ -127,14 +126,17 @@ spdk_gpt_base_bdev_init(struct spdk_bdev *bdev)
if (rc != 0) {
SPDK_ERRLOG("Could not open bdev %s, error=%d\n",
spdk_bdev_get_name(gpt_bdev->bdev), rc);
spdk_gpt_bdev_free(gpt_bdev);
spdk_dma_free(gpt->buf);
free(gpt_bdev);
return NULL;
}
gpt_bdev->ch = spdk_bdev_get_io_channel(gpt_bdev->bdev_desc);
if (!gpt_bdev->ch) {
SPDK_ERRLOG("Cannot allocate ch\n");
spdk_gpt_bdev_free(gpt_bdev);
spdk_bdev_close(gpt_bdev->bdev_desc);
spdk_dma_free(gpt->buf);
free(gpt_bdev);
return NULL;
}
@ -423,7 +425,6 @@ spdk_gpt_bdev_complete(struct spdk_bdev_io *bdev_io, bool status, void *arg)
{
struct spdk_gpt_bdev *gpt_bdev = (struct spdk_gpt_bdev *)arg;
struct spdk_bdev *bdev = gpt_bdev->bdev;
bool claimed = false;
int rc;
/* free the ch and also close the bdev_desc */
@ -449,7 +450,6 @@ spdk_gpt_bdev_complete(struct spdk_bdev_io *bdev_io, bool status, void *arg)
goto end;
}
claimed = true;
rc = vbdev_gpt_create_bdevs(gpt_bdev);
if (rc < 0) {
SPDK_TRACELOG(SPDK_TRACE_VBDEV_GPT, "Failed to split dev=%s by gpt table\n",
@ -465,11 +465,7 @@ end:
if (gpt_bdev->ref == 0) {
/* If no gpt_partition_disk instances were created, free the base context */
spdk_bdev_close(gpt_bdev->bdev_desc);
spdk_gpt_bdev_free(gpt_bdev);
if (claimed) {
spdk_bdev_module_release_bdev(bdev);
}
}
}