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posix-aio-compat: Fix error check 

Checking for nbytes < 0 is pointless as long as it's a size_t. If we want to
use negative numbers for error codes, we should use signed types.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Kevin Wolf 2009-11-18 12:15:10 +01:00 committed by Anthony Liguori
parent 7078dead94
commit 6769da29c7
1 changed files with 9 additions and 9 deletions
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18
posix-aio-compat.c
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@ -117,7 +117,7 @@ static void thread_create(pthread_t *thread, pthread_attr_t *attr,
if (ret) die2(ret, "pthread_create"); if (ret) die2(ret, "pthread_create");
} }
static size_t handle_aiocb_ioctl(struct qemu_paiocb *aiocb) static ssize_t handle_aiocb_ioctl(struct qemu_paiocb *aiocb)
{ {
int ret; int ret;
@ -136,7 +136,7 @@ static size_t handle_aiocb_ioctl(struct qemu_paiocb *aiocb)
return aiocb->aio_nbytes; return aiocb->aio_nbytes;
} }
static size_t handle_aiocb_flush(struct qemu_paiocb *aiocb) static ssize_t handle_aiocb_flush(struct qemu_paiocb *aiocb)
{ {
int ret; int ret;
@ -176,7 +176,7 @@ qemu_pwritev(int fd, const struct iovec *iov, int nr_iov, off_t offset)
#endif #endif
static size_t handle_aiocb_rw_vector(struct qemu_paiocb *aiocb) static ssize_t handle_aiocb_rw_vector(struct qemu_paiocb *aiocb)
{ {
size_t offset = 0; size_t offset = 0;
ssize_t len; ssize_t len;
@ -199,10 +199,10 @@ static size_t handle_aiocb_rw_vector(struct qemu_paiocb *aiocb)
return len; return len;
} }
static size_t handle_aiocb_rw_linear(struct qemu_paiocb *aiocb, char *buf) static ssize_t handle_aiocb_rw_linear(struct qemu_paiocb *aiocb, char *buf)
{ {
size_t offset = 0; ssize_t offset = 0;
size_t len; ssize_t len;
while (offset < aiocb->aio_nbytes) { while (offset < aiocb->aio_nbytes) {
if (aiocb->aio_type & QEMU_AIO_WRITE) if (aiocb->aio_type & QEMU_AIO_WRITE)
@ -230,9 +230,9 @@ static size_t handle_aiocb_rw_linear(struct qemu_paiocb *aiocb, char *buf)
return offset; return offset;
} }
static size_t handle_aiocb_rw(struct qemu_paiocb *aiocb) static ssize_t handle_aiocb_rw(struct qemu_paiocb *aiocb)
{ {
size_t nbytes; ssize_t nbytes;
char *buf; char *buf;
if (!(aiocb->aio_type & QEMU_AIO_MISALIGNED)) { if (!(aiocb->aio_type & QEMU_AIO_MISALIGNED)) {
@ -308,7 +308,7 @@ static void *aio_thread(void *unused)
while (1) { while (1) {
struct qemu_paiocb *aiocb; struct qemu_paiocb *aiocb;
size_t ret = 0; ssize_t ret = 0;
qemu_timeval tv; qemu_timeval tv;
struct timespec ts; struct timespec ts;