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-rw-r--r--src/readahead/readahead-common.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/src/readahead/readahead-common.c b/src/readahead/readahead-common.c
index 99dbac2525..766b3a1936 100644
--- a/src/readahead/readahead-common.c
+++ b/src/readahead/readahead-common.c
@@ -71,14 +71,16 @@ int fs_on_ssd(const char *p) {
if (major(st.st_dev) == 0)
return false;
- if (!(udev = udev_new()))
+ udev = udev_new();
+ if (!udev)
return -ENOMEM;
- if (!(udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev)))
+ udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
+ if (!udev_device)
goto finish;
- if ((devtype = udev_device_get_property_value(udev_device, "DEVTYPE")) &&
- streq(devtype, "partition"))
+ devtype = udev_device_get_property_value(udev_device, "DEVTYPE");
+ if (devtype && streq(devtype, "partition"))
look_at = udev_device_get_parent(udev_device);
else
look_at = udev_device;
@@ -87,21 +89,25 @@ int fs_on_ssd(const char *p) {
goto finish;
/* First, try high-level property */
- if ((id = udev_device_get_property_value(look_at, "ID_SSD"))) {
+ id = udev_device_get_property_value(look_at, "ID_SSD");
+ if (id) {
b = streq(id, "1");
goto finish;
}
/* Second, try kernel attribute */
- if ((rotational = udev_device_get_sysattr_value(look_at, "queue/rotational")))
+ rotational = udev_device_get_sysattr_value(look_at, "queue/rotational");
+ if (rotational)
if ((b = streq(rotational, "0")))
goto finish;
/* Finally, fallback to heuristics */
- if (!(look_at = udev_device_get_parent(look_at)))
+ look_at = udev_device_get_parent(look_at);
+ if (!look_at)
goto finish;
- if ((model = udev_device_get_sysattr_value(look_at, "model")))
+ model = udev_device_get_sysattr_value(look_at, "model");
+ if (model)
b = !!strstr(model, "SSD");
finish: