qemu: make qemuGetCompressionProgram return int not an enum

enum types are unsigned and the qemuGetCompressionProgram
function can return -1 on error. It is therefore inappropriate
to return an enum type. This fixes a build error where the
internal 'ret' variable was used in a comparison with -1

../../src/qemu/qemu_driver.c: In function 'qemuGetCompressionProgram':
../../src/qemu/qemu_driver.c:3280:5: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
../../src/qemu/qemu_driver.c:3289:5: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
cc1: all warnings being treated as errors

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-09-27 09:49:20 +01:00
parent 4ab456806f
commit 1d4634dbee

View File

@ -3264,13 +3264,13 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver, virDomainPtr dom,
* no there was an error, then just return RAW * no there was an error, then just return RAW
* indicating none. * indicating none.
*/ */
static virQEMUSaveFormat ATTRIBUTE_NONNULL(2) static int ATTRIBUTE_NONNULL(2)
qemuGetCompressionProgram(const char *imageFormat, qemuGetCompressionProgram(const char *imageFormat,
char **compresspath, char **compresspath,
const char *styleFormat, const char *styleFormat,
bool use_raw_on_fail) bool use_raw_on_fail)
{ {
virQEMUSaveFormat ret; int ret;
*compresspath = NULL; *compresspath = NULL;