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block/nvme: Make nvme_identify() return boolean indicating error 

Just for consistency, following the example documented since
commit e3fe3988d7 ("error: Document Error API usage rules"),
return a boolean value indicating an error is set or not.
Directly pass errp as the local_err is not requested in our
case.

Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20201029093306.1063879-11-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
master
Philippe Mathieu-Daudé 2020-10-29 10:32:51 +01:00 committed by Stefan Hajnoczi
parent 1b539bd6db
commit 7a5f00dde3
1 changed files with 7 additions and 5 deletions
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12
block/nvme.c
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@ -506,9 +506,11 @@ static int nvme_cmd_sync(BlockDriverState *bs, NVMeQueuePair *q,
return ret; return ret;
} }
static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp) /* Returns true on success, false on failure. */
static bool nvme_identify(BlockDriverState *bs, int namespace, Error **errp)
{ {
BDRVNVMeState *s = bs->opaque; BDRVNVMeState *s = bs->opaque;
bool ret = false;
union { union {
NvmeIdCtrl ctrl; NvmeIdCtrl ctrl;
NvmeIdNs ns; NvmeIdNs ns;
@ -585,10 +587,13 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp)
goto out; goto out;
} }
ret = true;
s->blkshift = lbaf->ds; s->blkshift = lbaf->ds;
out: out:
qemu_vfio_dma_unmap(s->vfio, id); qemu_vfio_dma_unmap(s->vfio, id);
qemu_vfree(id); qemu_vfree(id);
return ret;
} }
static bool nvme_poll_queue(NVMeQueuePair *q) static bool nvme_poll_queue(NVMeQueuePair *q)
@ -701,7 +706,6 @@ static int nvme_init(BlockDriverState *bs, const char *device, int namespace,
uint64_t cap; uint64_t cap;
uint64_t timeout_ms; uint64_t timeout_ms;
uint64_t deadline, now; uint64_t deadline, now;
Error *local_err = NULL;
volatile NvmeBar *regs = NULL; volatile NvmeBar *regs = NULL;
qemu_co_mutex_init(&s->dma_map_lock); qemu_co_mutex_init(&s->dma_map_lock);
@ -818,9 +822,7 @@ static int nvme_init(BlockDriverState *bs, const char *device, int namespace,
&s->irq_notifier[MSIX_SHARED_IRQ_IDX], &s->irq_notifier[MSIX_SHARED_IRQ_IDX],
false, nvme_handle_event, nvme_poll_cb); false, nvme_handle_event, nvme_poll_cb);
nvme_identify(bs, namespace, &local_err); if (!nvme_identify(bs, namespace, errp)) {
if (local_err) {
error_propagate(errp, local_err);
ret = -EIO; ret = -EIO;
goto out; goto out;
} }