提交 12765517 编写于 作者: W Wolfram Sang 提交者: Linus Torvalds

device_attributes: add sysfs_attr_init() for dynamic attributes

Made necessary by 6992f533 ("sysfs: Use
one lockdep class per sysfs attribute").

Prevents further "key xxx not in .data" bug-reports.  Although some
attributes could probably be converted to static ones, this is left for
people having hardware to test.

Found by this semantic patch:

@ init @
type T;
identifier A;
@@

        T {
                ...
                struct device_attribute A;
                ...
        };

@ main extends init @
expression E;
statement S;
identifier err;
T *name;
@@

        ... when != sysfs_attr_init(&name->A.attr);
(
+       sysfs_attr_init(&name->A.attr);
        if (device_create_file(E, &name->A))
                S
|
+       sysfs_attr_init(&name->A.attr);
        err = device_create_file(E, &name->A);
)

While reviewing, I put the initialization to apropriate places.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Greg KH <gregkh@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Mike Isely <isely@pobox.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Sujith Thomas <sujith.thomas@intel.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 975f8c56
......@@ -210,6 +210,7 @@ int wf_register_control(struct wf_control *new_ct)
kref_init(&new_ct->ref);
list_add(&new_ct->link, &wf_controls);
sysfs_attr_init(&new_ct->attr.attr);
new_ct->attr.attr.name = new_ct->name;
new_ct->attr.attr.mode = 0644;
new_ct->attr.show = wf_show_control;
......
......@@ -423,10 +423,12 @@ static void pvr2_sysfs_add_debugifc(struct pvr2_sysfs *sfp)
dip = kzalloc(sizeof(*dip),GFP_KERNEL);
if (!dip) return;
sysfs_attr_init(&dip->attr_debugcmd.attr);
dip->attr_debugcmd.attr.name = "debugcmd";
dip->attr_debugcmd.attr.mode = S_IRUGO|S_IWUSR|S_IWGRP;
dip->attr_debugcmd.show = debugcmd_show;
dip->attr_debugcmd.store = debugcmd_store;
sysfs_attr_init(&dip->attr_debuginfo.attr);
dip->attr_debuginfo.attr.name = "debuginfo";
dip->attr_debuginfo.attr.mode = S_IRUGO;
dip->attr_debuginfo.show = debuginfo_show;
......@@ -644,6 +646,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
return;
}
sysfs_attr_init(&sfp->attr_v4l_minor_number.attr);
sfp->attr_v4l_minor_number.attr.name = "v4l_minor_number";
sfp->attr_v4l_minor_number.attr.mode = S_IRUGO;
sfp->attr_v4l_minor_number.show = v4l_minor_number_show;
......@@ -658,6 +661,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->v4l_minor_number_created_ok = !0;
}
sysfs_attr_init(&sfp->attr_v4l_radio_minor_number.attr);
sfp->attr_v4l_radio_minor_number.attr.name = "v4l_radio_minor_number";
sfp->attr_v4l_radio_minor_number.attr.mode = S_IRUGO;
sfp->attr_v4l_radio_minor_number.show = v4l_radio_minor_number_show;
......@@ -672,6 +676,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->v4l_radio_minor_number_created_ok = !0;
}
sysfs_attr_init(&sfp->attr_unit_number.attr);
sfp->attr_unit_number.attr.name = "unit_number";
sfp->attr_unit_number.attr.mode = S_IRUGO;
sfp->attr_unit_number.show = unit_number_show;
......@@ -685,6 +690,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->unit_number_created_ok = !0;
}
sysfs_attr_init(&sfp->attr_bus_info.attr);
sfp->attr_bus_info.attr.name = "bus_info_str";
sfp->attr_bus_info.attr.mode = S_IRUGO;
sfp->attr_bus_info.show = bus_info_show;
......@@ -699,6 +705,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->bus_info_created_ok = !0;
}
sysfs_attr_init(&sfp->attr_hdw_name.attr);
sfp->attr_hdw_name.attr.name = "device_hardware_type";
sfp->attr_hdw_name.attr.mode = S_IRUGO;
sfp->attr_hdw_name.show = hdw_name_show;
......@@ -713,6 +720,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
sfp->hdw_name_created_ok = !0;
}
sysfs_attr_init(&sfp->attr_hdw_desc.attr);
sfp->attr_hdw_desc.attr.name = "device_hardware_description";
sfp->attr_hdw_desc.attr.mode = S_IRUGO;
sfp->attr_hdw_desc.show = hdw_desc_show;
......
......@@ -397,6 +397,7 @@ static int intel_menlow_add_one_attribute(char *name, int mode, void *show,
if (!attr)
return -ENOMEM;
sysfs_attr_init(&attr->attr.attr); /* That is consistent naming :D */
attr->attr.attr.name = name;
attr->attr.attr.mode = mode;
attr->attr.show = show;
......
......@@ -1536,6 +1536,7 @@ static int __devinit fsl_diu_probe(struct of_device *ofdev,
goto error;
}
sysfs_attr_init(&machine_data->dev_attr.attr);
machine_data->dev_attr.attr.name = "monitor";
machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR;
machine_data->dev_attr.show = show_monitor;
......
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