9pfs: use error_report() instead of fprintf(stderr)

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>

hw/9pfs/9p-handle.c

@@ -19,6 +19,7 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 #include "qemu/xattr.h"
+#include "qemu/error-report.h"
 #include <unistd.h>
 #include <linux/fs.h>
 #ifdef CONFIG_LINUX_MAGIC_H
@@ -655,12 +656,12 @@ static int handle_parse_opts(QemuOpts *opts, struct FsDriverEntry *fse)
     const char *path = qemu_opt_get(opts, "path");
 
     if (sec_model) {
-        fprintf(stderr, "Invalid argument security_model specified with handle fsdriver\n");
+        error_report("Invalid argument security_model specified with handle fsdriver");
         return -1;
     }
 
     if (!path) {
-        fprintf(stderr, "fsdev: No path specified.\n");
+        error_report("fsdev: No path specified");
         return -1;
     }
     fse->path = g_strdup(path);

hw/9pfs/9p-local.c

@@ -20,6 +20,7 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 #include "qemu/xattr.h"
+#include "qemu/error-report.h"
 #include <libgen.h>
 #include <linux/fs.h>
 #ifdef CONFIG_LINUX_MAGIC_H
@@ -1209,9 +1210,9 @@ static int local_parse_opts(QemuOpts *opts, struct FsDriverEntry *fse)
     const char *path = qemu_opt_get(opts, "path");
 
     if (!sec_model) {
-        fprintf(stderr, "security model not specified, "
-                "local fs needs security model\nvalid options are:"
-                "\tsecurity_model=[passthrough|mapped|none]\n");
+        error_report("Security model not specified, local fs needs security model");
+        error_printf("valid options are:"
+                     "\tsecurity_model=[passthrough|mapped-xattr|mapped-file|none]\n");
         return -1;
     }
 
@@ -1225,14 +1226,14 @@ static int local_parse_opts(QemuOpts *opts, struct FsDriverEntry *fse)
     } else if (!strcmp(sec_model, "mapped-file")) {
         fse->export_flags |= V9FS_SM_MAPPED_FILE;
     } else {
-        fprintf(stderr, "Invalid security model %s specified, valid options are"
-                "\n\t [passthrough|mapped-xattr|mapped-file|none]\n",
-                sec_model);
+        error_report("Invalid security model %s specified", sec_model);
+        error_printf("valid options are:"
+                     "\t[passthrough|mapped-xattr|mapped-file|none]\n");
         return -1;
     }
 
     if (!path) {
-        fprintf(stderr, "fsdev: No path specified.\n");
+        error_report("fsdev: No path specified");
         return -1;
     }
     fse->path = g_strdup(path);

hw/9pfs/9p-proxy.c

@@ -1100,19 +1100,19 @@ static int connect_namedsocket(const char *path)
     struct sockaddr_un helper;
 
     if (strlen(path) >= sizeof(helper.sun_path)) {
-        fprintf(stderr, "Socket name too large\n");
+        error_report("Socket name too long");
         return -1;
     }
     sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
     if (sockfd < 0) {
-        fprintf(stderr, "failed to create socket: %s\n", strerror(errno));
+        error_report("Failed to create socket: %s", strerror(errno));
         return -1;
     }
     strcpy(helper.sun_path, path);
     helper.sun_family = AF_UNIX;
     size = strlen(helper.sun_path) + sizeof(helper.sun_family);
     if (connect(sockfd, (struct sockaddr *)&helper, size) < 0) {
-        fprintf(stderr, "failed to connect to %s: %s\n", path, strerror(errno));
+        error_report("Failed to connect to %s: %s", path, strerror(errno));
         close(sockfd);
         return -1;
     }
@@ -1128,11 +1128,11 @@ static int proxy_parse_opts(QemuOpts *opts, struct FsDriverEntry *fs)
     const char *sock_fd = qemu_opt_get(opts, "sock_fd");
 
     if (!socket && !sock_fd) {
-        fprintf(stderr, "socket and sock_fd none of the option specified\n");
+        error_report("Must specify either socket or sock_fd");
         return -1;
     }
     if (socket && sock_fd) {
-        fprintf(stderr, "Both socket and sock_fd options specified\n");
+        error_report("Both socket and sock_fd options specified");
         return -1;
     }
     if (socket) {
@@ -1155,7 +1155,7 @@ static int proxy_init(FsContext *ctx)
     } else {
         sock_id = atoi(ctx->fs_root);
         if (sock_id < 0) {
-            fprintf(stderr, "socket descriptor not initialized\n");
+            error_report("Socket descriptor not initialized");
         }
     }
     if (sock_id < 0) {

hw/9pfs/9p.c

@@ -3370,7 +3370,7 @@ static void __attribute__((__constructor__)) v9fs_set_fd_limit(void)
 {
     struct rlimit rlim;
     if (getrlimit(RLIMIT_NOFILE, &rlim) < 0) {
-        fprintf(stderr, "Failed to get the resource limit\n");
+        error_report("Failed to get the resource limit");
         exit(1);
     }
     open_fd_hw = rlim.rlim_cur - MIN(400, rlim.rlim_cur/3);