From 99f4570cfba1e60daafde737cb7e395006d719e6 Mon Sep 17 00:00:00 2001
From: "Michael J. Ruhl" <michael.j.ruhl@intel.com>
Date: Fri, 23 Feb 2024 15:25:56 -0500
Subject: [PATCH] clkdev: Update clkdev id usage to allow for longer names
clkdev DEV ID information is limited to an array of 20 bytes
(MAX_DEV_ID). It is possible that the ID could be longer than
that. If so, the lookup will fail because the "real ID" will
not match the copied value.
For instance, generating a device name for the I2C Designware
module using the PCI ID can result in a name of:
i2c_designware.39424
clkdev_create() will store:
i2c_designware.3942
The stored name is one off and will not match correctly during probe.
Increase the size of the ID to allow for a longer name.
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://lore.kernel.org/r/20240223202556.2194021-1-michael.j.ruhl@intel.com
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---
drivers/clk/clkdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
index ee37d0be6877d..9cd80522ca2d7 100644
--- a/drivers/clk/clkdev.c
+++ b/drivers/clk/clkdev.c
@@ -144,7 +144,7 @@ void clkdev_add_table(struct clk_lookup *cl, size_t num)
mutex_unlock(&clocks_mutex);
}
-#define MAX_DEV_ID 20
+#define MAX_DEV_ID 24
#define MAX_CON_ID 16
struct clk_lookup_alloc {
--
2.49.0