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staging: usbip: userspace: suppress a bogus error

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If mkdir() of VHCI_STATE_PATH fails because the directory
already exists, that's not an error. This patch fixes
annoying "record connection" errors that would typically
come up on attach.

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Acked-by: David Chang <dchang@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilija Hadzic 2012-12-07 16:49:44 -05:00 committed by Greg Kroah-Hartman
parent 107fefd4dd
commit 82692d202a
1 changed files with 13 additions and 2 deletions
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15
drivers/staging/usbip/userspace/src/usbip_attach.c
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@ -27,6 +27,7 @@
#include <fcntl.h>
#include <getopt.h>
#include <unistd.h>
#include <errno.h>
#include "vhci_driver.h"
#include "usbip_common.h"
@ -52,8 +53,18 @@ static int record_connection(char *host, char *port, char *busid, int rhport)
int ret;
ret = mkdir(VHCI_STATE_PATH, 0700);
if (ret < 0)
return -1;
if (ret < 0) {
/* if VHCI_STATE_PATH exists, then it better be a directory */
if (errno == EEXIST) {
struct stat s;
ret = stat(VHCI_STATE_PATH, &s);
if (ret < 0)
return -1;
if (!(s.st_mode & S_IFDIR))
return -1;
} else
return -1;
}
snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", rhport);