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Subject[GIT PATCH 14/18] turbografx: handle errors from input_register_device()
Input: turbografx - handle errors from input_register_device()

Also tgfx_remove shouldn't be marked __exit as it is also called from
__init code.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
drivers/input/joystick/turbografx.c | 20 +++++++++++++-------
1 files changed, 13 insertions(+), 7 deletions(-)
Index: work/drivers/input/joystick/turbografx.c
===================================================================
--- work.orig/drivers/input/joystick/turbografx.c
+++ work/drivers/input/joystick/turbografx.c
@@ -204,14 +204,14 @@ static struct tgfx __init *tgfx_probe(in
if (n_buttons[i] > 6) {
printk(KERN_ERR "turbografx.c: Invalid number of buttons %d\n", n_buttons[i]);
err = -EINVAL;
- goto err_free_devs;
+ goto err_unreg_devs;
}

tgfx->dev[i] = input_dev = input_allocate_device();
if (!input_dev) {
printk(KERN_ERR "turbografx.c: Not enough memory for input device\n");
err = -ENOMEM;
- goto err_free_devs;
+ goto err_unreg_devs;
}

tgfx->sticks |= (1 << i);
@@ -238,7 +238,9 @@ static struct tgfx __init *tgfx_probe(in
for (j = 0; j < n_buttons[i]; j++)
set_bit(tgfx_buttons[j], input_dev->keybit);

- input_register_device(tgfx->dev[i]);
+ err = input_register_device(tgfx->dev[i]);
+ if (err)
+ goto err_free_dev;
}

if (!tgfx->sticks) {
@@ -249,9 +251,12 @@ static struct tgfx __init *tgfx_probe(in

return tgfx;

- err_free_devs:
+ err_free_dev:
+ input_free_device(tgfx->dev[i]);
+ err_unreg_devs:
while (--i >= 0)
- input_unregister_device(tgfx->dev[i]);
+ if (tgfx->dev[i])
+ input_unregister_device(tgfx->dev[i]);
err_free_tgfx:
kfree(tgfx);
err_unreg_pardev:
@@ -262,7 +267,7 @@ static struct tgfx __init *tgfx_probe(in
return ERR_PTR(err);
}

-static void __exit tgfx_remove(struct tgfx *tgfx)
+static void tgfx_remove(struct tgfx *tgfx)
{
int i;

@@ -300,7 +305,8 @@ static int __init tgfx_init(void)

if (err) {
while (--i >= 0)
- tgfx_remove(tgfx_base[i]);
+ if (tgfx_base[i])
+ tgfx_remove(tgfx_base[i]);
return err;
}

-
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