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Tools: hv: Handle the case when the target file exists correctly

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Return the appropriate error code and handle the case when the target
file exists correctly. This fixes a bug.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org> [3.14]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2014-04-09 17:24:16 -07:00 • committed by Greg Kroah-Hartman
parent 177581faf2
commit 314672a2c2
2 changed files with 4 additions and 1 deletions
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1
include/uapi/linux/hyperv.h
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@ -305,6 +305,7 @@ enum hv_kvp_exchg_pool {
#define HV_ERROR_DEVICE_NOT_CONNECTED 0x8007048F #define HV_ERROR_DEVICE_NOT_CONNECTED 0x8007048F
#define HV_INVALIDARG 0x80070057 #define HV_INVALIDARG 0x80070057
#define HV_GUID_NOTFOUND 0x80041002 #define HV_GUID_NOTFOUND 0x80041002
#define HV_ERROR_ALREADY_EXISTS 0x80070050
#define ADDR_FAMILY_NONE 0x00 #define ADDR_FAMILY_NONE 0x00
#define ADDR_FAMILY_IPV4 0x01 #define ADDR_FAMILY_IPV4 0x01

4
tools/hv/hv_fcopy_daemon.c
View file

@ -82,8 +82,10 @@ static int hv_start_fcopy(struct hv_start_fcopy *smsg)
if (!access(target_fname, F_OK)) { if (!access(target_fname, F_OK)) {
syslog(LOG_INFO, "File: %s exists", target_fname); syslog(LOG_INFO, "File: %s exists", target_fname);
if (!smsg->copy_flags & OVER_WRITE) if (!(smsg->copy_flags & OVER_WRITE)) {
error = HV_ERROR_ALREADY_EXISTS;
goto done; goto done;
}
} }
target_fd = open(target_fname, O_RDWR | O_CREAT | O_CLOEXEC, 0744); target_fd = open(target_fname, O_RDWR | O_CREAT | O_CLOEXEC, 0744);