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-rw-r--r--booster/src/booster.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/booster/src/booster.c b/booster/src/booster.c
index 6b842408eeb..81c60574665 100644
--- a/booster/src/booster.c
+++ b/booster/src/booster.c
@@ -701,12 +701,13 @@ pread (int fd, void *buf, size_t count, unsigned long offset)
glfs_fd = booster_get_glfs_fd (booster_glfs_fdtable, fd);
if (!glfs_fd) {
- ret = real_pread (fd, buf, count, offset);
+ if (real_pread == NULL) {
+ errno = ENOSYS;
+ ret = -1;
+ } else
+ ret = real_pread (fd, buf, count, offset);
} else {
ret = glusterfs_pread (glfs_fd, buf, count, offset);
- if (ret == -1) {
- ret = real_pread (fd, buf, count, offset);
- }
booster_put_glfs_fd (glfs_fd);
}