fix: handle EINTR correctly in get_cpu_mask_from_sysfs

[lttng-ust.git] / libringbuffer / smp.c

diff --git a/libringbuffer/smp.c b/libringbuffer/smp.c
index 73804b66427f409626b532d1b1e12b01f5f124ff..8a65c40568b2483cd82c2a010c88c7c5155c4ecc 100644 (file)
--- a/libringbuffer/smp.c
+++ b/libringbuffer/smp.c
@@ -142,7 +142,7 @@ int get_possible_cpu_mask_from_sysfs(char *buf, size_t max_bytes)
 
                total_bytes_read += bytes_read;
                assert(total_bytes_read <= max_bytes);
-       } while (max_bytes > total_bytes_read && bytes_read > 0);
+       } while (max_bytes > total_bytes_read && bytes_read != 0);
 
        /*
         * Make sure the mask read is a null terminated string.