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authorGeert Uytterhoeven <geert+renesas@glider.be>2018-01-03 12:06:15 +0100
committerStephen Boyd <sboyd@codeaurora.org>2018-01-10 13:13:23 -0800
commit4c8326d5ebb0de3191e98980c80ab644026728d0 (patch)
tree1ef8d1c0c4d358278bfec77ab56fa0a75fd000b4 /drivers/clk
parenta6059ab98130fb561157682d320c51c5ccd4b647 (diff)
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: Geert Uytterhoeven <geert+renesas@glider.be> [sboyd@codeaurora.org: Squash the octal change in too] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/clk.c36
1 files changed, 17 insertions, 19 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 479a3ee9cfe2..c8ea2dd32251 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -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;

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