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| author | Li Qiang <liq3ea@163.com> | 2020-08-15 07:19:39 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-30 19:09:20 +0200 |
| commit | 5ecfbae201d68a2f13df233260c77b0a25d7cd35 (patch) | |
| tree | 6b7a804842be0d193af65a632a1bef7071ac357b /hw | |
| parent | afff2db61f6ace9bb2c4d81c7c57601f5c009acd (diff) | |
| download | qemu-5ecfbae201d68a2f13df233260c77b0a25d7cd35.zip qemu-5ecfbae201d68a2f13df233260c77b0a25d7cd35.tar.gz qemu-5ecfbae201d68a2f13df233260c77b0a25d7cd35.tar.bz2 | |
hw: megasas: return -1 when 'megasas_map_sgl' fails
The caller of 'megasas_map_sgl' will only check if the return
is zero or not. If it return 0 it means success, as in the next
patch we will consider 'iov_count=0' is an error, so let's
return -1 to indicate a failure.
Signed-off-by: Li Qiang <liq3ea@163.com>
Message-Id: <20200815141940.44025-2-liq3ea@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/scsi/megasas.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index e90c008..4cc709d 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -280,7 +280,7 @@ static int megasas_map_sgl(MegasasState *s, MegasasCmd *cmd, union mfi_sgl *sgl) if (iov_count > MEGASAS_MAX_SGE) { trace_megasas_iovec_sgl_overflow(cmd->index, iov_count, MEGASAS_MAX_SGE); - return iov_count; + return -1; } pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), iov_count); for (i = 0; i < iov_count; i++) { @@ -310,7 +310,7 @@ static int megasas_map_sgl(MegasasState *s, MegasasCmd *cmd, union mfi_sgl *sgl) return 0; unmap: qemu_sglist_destroy(&cmd->qsg); - return iov_count - i; + return -1; } /* |