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HSI: hsi_char: Remove max_data_size from sysfs

Remove max_data_size sysfs entry. Otherwise is possible
to have a buffer overrun if its value is increased after
the device is open.

Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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commit fdadb6e9a5cf65c7662b2ca817856f187d05ab7d 1 parent ec1c56f
Carlos Chinea authored
Showing with 1 addition and 1 deletion.
  1. +1 −1  drivers/hsi/clients/hsi_char.c
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2  drivers/hsi/clients/hsi_char.c
@@ -123,7 +123,7 @@ struct hsc_client_data {
static unsigned int hsc_major;
/* Maximum buffer size that hsi_char will accept from userspace */
static unsigned int max_data_size = 0x1000;
-module_param(max_data_size, uint, S_IRUSR | S_IWUSR);
+module_param(max_data_size, uint, 0);
MODULE_PARM_DESC(max_data_size, "max read/write data size [4,8..65536] (^2)");
static void hsc_add_tail(struct hsc_channel *channel, struct hsi_msg *msg,
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