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[Qemu-devel] [PATCH v2 31/35] fsdev: Clean up error reporting in qemu_fs
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PATCH v2 31/35] fsdev: Clean up error reporting in qemu_fsdev_add() |
Date: |
Mon, 15 Oct 2018 13:53:05 +0200 |
Calling error_report() from within a function that takes an Error **
argument is suspicious. qemu_fsdev_add() does that, and its caller
fsdev_init_func() then fails without setting an error. Its caller
main(), via qemu_opts_foreach(), is fine with it, but clean it up
anyway.
Cc: Greg Kurz <address@hidden>
Signed-off-by: Markus Armbruster <address@hidden>
Acked-by: Greg Kurz <address@hidden>
---
fsdev/qemu-fsdev-dummy.c | 2 +-
fsdev/qemu-fsdev.c | 12 +++++-------
fsdev/qemu-fsdev.h | 2 +-
hw/9pfs/xen-9p-backend.c | 7 ++++++-
vl.c | 8 +++-----
5 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/fsdev/qemu-fsdev-dummy.c b/fsdev/qemu-fsdev-dummy.c
index 6dc0fbc4c4..489cd29081 100644
--- a/fsdev/qemu-fsdev-dummy.c
+++ b/fsdev/qemu-fsdev-dummy.c
@@ -15,7 +15,7 @@
#include "qemu/config-file.h"
#include "qemu/module.h"
-int qemu_fsdev_add(QemuOpts *opts)
+int qemu_fsdev_add(QemuOpts *opts, Error **errp)
{
return 0;
}
diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c
index 8a4afbffbd..7a3b87cc9e 100644
--- a/fsdev/qemu-fsdev.c
+++ b/fsdev/qemu-fsdev.c
@@ -30,7 +30,7 @@ static FsDriverTable FsDrivers[] = {
{ .name = "proxy", .ops = &proxy_ops},
};
-int qemu_fsdev_add(QemuOpts *opts)
+int qemu_fsdev_add(QemuOpts *opts, Error **errp)
{
int i;
struct FsDriverListEntry *fsle;
@@ -38,10 +38,9 @@ int qemu_fsdev_add(QemuOpts *opts)
const char *fsdriver = qemu_opt_get(opts, "fsdriver");
const char *writeout = qemu_opt_get(opts, "writeout");
bool ro = qemu_opt_get_bool(opts, "readonly", 0);
- Error *local_err = NULL;
if (!fsdev_id) {
- error_report("fsdev: No id specified");
+ error_setg(errp, "fsdev: No id specified");
return -1;
}
@@ -53,11 +52,11 @@ int qemu_fsdev_add(QemuOpts *opts)
}
if (i == ARRAY_SIZE(FsDrivers)) {
- error_report("fsdev: fsdriver %s not found", fsdriver);
+ error_setg(errp, "fsdev: fsdriver %s not found", fsdriver);
return -1;
}
} else {
- error_report("fsdev: No fsdriver specified");
+ error_setg(errp, "fsdev: No fsdriver specified");
return -1;
}
@@ -76,8 +75,7 @@ int qemu_fsdev_add(QemuOpts *opts)
}
if (fsle->fse.ops->parse_opts) {
- if (fsle->fse.ops->parse_opts(opts, &fsle->fse, &local_err)) {
- error_report_err(local_err);
+ if (fsle->fse.ops->parse_opts(opts, &fsle->fse, errp)) {
g_free(fsle->fse.fsdev_id);
g_free(fsle);
return -1;
diff --git a/fsdev/qemu-fsdev.h b/fsdev/qemu-fsdev.h
index 65e4b1cfab..d9716b4144 100644
--- a/fsdev/qemu-fsdev.h
+++ b/fsdev/qemu-fsdev.h
@@ -38,7 +38,7 @@ typedef struct FsDriverListEntry {
QTAILQ_ENTRY(FsDriverListEntry) next;
} FsDriverListEntry;
-int qemu_fsdev_add(QemuOpts *opts);
+int qemu_fsdev_add(QemuOpts *opts, Error **errp);
FsDriverEntry *get_fsdev_fsentry(char *id);
extern FileOperations local_ops;
extern FileOperations handle_ops;
diff --git a/hw/9pfs/xen-9p-backend.c b/hw/9pfs/xen-9p-backend.c
index 6026780f95..3f54a21c76 100644
--- a/hw/9pfs/xen-9p-backend.c
+++ b/hw/9pfs/xen-9p-backend.c
@@ -14,6 +14,7 @@
#include "hw/9pfs/9p.h"
#include "hw/xen/xen_backend.h"
#include "hw/9pfs/xen-9pfs.h"
+#include "qapi/error.h"
#include "qemu/config-file.h"
#include "qemu/option.h"
#include "fsdev/qemu-fsdev.h"
@@ -355,6 +356,7 @@ static int xen_9pfs_free(struct XenDevice *xendev)
static int xen_9pfs_connect(struct XenDevice *xendev)
{
+ Error *err = NULL;
int i;
Xen9pfsDev *xen_9pdev = container_of(xendev, Xen9pfsDev, xendev);
V9fsState *s = &xen_9pdev->state;
@@ -452,7 +454,10 @@ static int xen_9pfs_connect(struct XenDevice *xendev)
qemu_opt_set(fsdev, "path", xen_9pdev->path, NULL);
qemu_opt_set(fsdev, "security_model", xen_9pdev->security_model, NULL);
qemu_opts_set_id(fsdev, s->fsconf.fsdev_id);
- qemu_fsdev_add(fsdev);
+ qemu_fsdev_add(fsdev, &err);
+ if (err) {
+ error_report_err(err);
+ }
v9fs_device_realize_common(s, &xen_9p_transport, NULL);
return 0;
diff --git a/vl.c b/vl.c
index abfe991ed6..2a8ef05aef 100644
--- a/vl.c
+++ b/vl.c
@@ -2249,7 +2249,7 @@ static int chardev_init_func(void *opaque, QemuOpts
*opts, Error **errp)
#ifdef CONFIG_VIRTFS
static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
{
- return qemu_fsdev_add(opts);
+ return qemu_fsdev_add(opts, errp);
}
#endif
@@ -4235,10 +4235,8 @@ int main(int argc, char **argv, char **envp)
chardev_init_func, NULL, &error_fatal);
#ifdef CONFIG_VIRTFS
- if (qemu_opts_foreach(qemu_find_opts("fsdev"),
- fsdev_init_func, NULL, NULL)) {
- exit(1);
- }
+ qemu_opts_foreach(qemu_find_opts("fsdev"),
+ fsdev_init_func, NULL, &error_fatal);
#endif
if (qemu_opts_foreach(qemu_find_opts("device"),
--
2.17.1
- [Qemu-devel] [PATCH v2 27/35] vnc: Clean up error reporting in vnc_init_func(), (continued)
- [Qemu-devel] [PATCH v2 27/35] vnc: Clean up error reporting in vnc_init_func(), Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 30/35] spice: Clean up error reporting in add_channel(), Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 28/35] numa: Clean up error reporting in parse_numa(), Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 23/35] vl: Clean up error reporting in parse_fw_cfg(), Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 04/35] cpus hw target: Use warn_report() & friends to report warnings, Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 16/35] xen/pt: Fix incomplete conversion to realize(), Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 13/35] l2tpv3: Improve -netdev/netdev_add/-net/... error reporting, Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 24/35] vl: Clean up error reporting in device_init_func(), Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 31/35] fsdev: Clean up error reporting in qemu_fsdev_add(),
Markus Armbruster <=
- [Qemu-devel] [PATCH v2 26/35] ui: Convert vnc_display_init(), init_keyboard_layout() to Error, Markus Armbruster, 2018/10/15
- [Qemu-devel] [PATCH v2 17/35] seccomp: Clean up error reporting in parse_sandbox(), Markus Armbruster, 2018/10/15