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Commit 4c8326d5 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Stephen Boyd
Browse files

clk: Fix debugfs_create_*() usage 



When exposing data access through debugfs, the correct
debugfs_create_*() functions must be used, matching the data
types.

Remove all casts from data pointers passed to debugfs_create_*()
functions, as such casts prevent the compiler from flagging bugs.

clk_core.rate and .accuracy are "unsigned long", hence casting
their addresses to "u32 *" exposed the wrong halves on big-endian
64-bit systems. Fix this by using debugfs_create_ulong() instead.

Octal permissions are preferred, as they are easier to read than
symbolic permissions. Hence replace "S_IRUGO" by "0444"
throughout.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
[sboyd@codeaurora.org: Squash the octal change in too]
Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
parent a6059ab9

drivers/clk/clk.c

+17 −19
Original line number Diff line number Diff line
@@ -2648,18 +2648,16 @@ static int clk_debug_create_one(struct clk_core *core, struct dentry *pdentry) 


	core->dentry = d;



	d = debugfs_create_u32("clk_rate", S_IRUGO, core->dentry,

			(u32 *)&core->rate);

	d = debugfs_create_ulong("clk_rate", 0444, core->dentry, &core->rate);

	if (!d)

		goto err_out;



	d = debugfs_create_u32("clk_accuracy", S_IRUGO, core->dentry,

			(u32 *)&core->accuracy);

	d = debugfs_create_ulong("clk_accuracy", 0444, core->dentry,

				 &core->accuracy);

	if (!d)

		goto err_out;



	d = debugfs_create_u32("clk_phase", S_IRUGO, core->dentry,

			(u32 *)&core->phase);

	d = debugfs_create_u32("clk_phase", 0444, core->dentry, &core->phase);

	if (!d)

		goto err_out;
@@ -2668,28 +2666,28 @@ static int clk_debug_create_one(struct clk_core *core, struct dentry *pdentry) 
	if (!d)

		goto err_out;



	d = debugfs_create_u32("clk_prepare_count", S_IRUGO, core->dentry,

			(u32 *)&core->prepare_count);

	d = debugfs_create_u32("clk_prepare_count", 0444, core->dentry,

			       &core->prepare_count);

	if (!d)

		goto err_out;



	d = debugfs_create_u32("clk_enable_count", S_IRUGO, core->dentry,

			(u32 *)&core->enable_count);

	d = debugfs_create_u32("clk_enable_count", 0444, core->dentry,

			       &core->enable_count);

	if (!d)

		goto err_out;



	d = debugfs_create_u32("clk_protect_count", S_IRUGO, core->dentry,

			(u32 *)&core->protect_count);

	d = debugfs_create_u32("clk_protect_count", 0444, core->dentry,

			       &core->protect_count);

	if (!d)

		goto err_out;



	d = debugfs_create_u32("clk_notifier_count", S_IRUGO, core->dentry,

			(u32 *)&core->notifier_count);

	d = debugfs_create_u32("clk_notifier_count", 0444, core->dentry,

			       &core->notifier_count);

	if (!d)

		goto err_out;



	if (core->num_parents > 1) {

		d = debugfs_create_file("clk_possible_parents", S_IRUGO,

		d = debugfs_create_file("clk_possible_parents", 0444,

				core->dentry, core, &possible_parents_fops);

		if (!d)

			goto err_out;
@@ -2785,22 +2783,22 @@ static int __init clk_debug_init(void) 
	if (!rootdir)

		return -ENOMEM;



	d = debugfs_create_file("clk_summary", S_IRUGO, rootdir, &all_lists,

	d = debugfs_create_file("clk_summary", 0444, rootdir, &all_lists,

				&clk_summary_fops);

	if (!d)

		return -ENOMEM;



	d = debugfs_create_file("clk_dump", S_IRUGO, rootdir, &all_lists,

	d = debugfs_create_file("clk_dump", 0444, rootdir, &all_lists,

				&clk_dump_fops);

	if (!d)

		return -ENOMEM;



	d = debugfs_create_file("clk_orphan_summary", S_IRUGO, rootdir,

	d = debugfs_create_file("clk_orphan_summary", 0444, rootdir,

				&orphan_list, &clk_summary_fops);

	if (!d)

		return -ENOMEM;



	d = debugfs_create_file("clk_orphan_dump", S_IRUGO, rootdir,

	d = debugfs_create_file("clk_orphan_dump", 0444, rootdir,

				&orphan_list, &clk_dump_fops);

	if (!d)

		return -ENOMEM;