-------- Original Message --------
From: Arve Hjønnevåg
Sent: 2012年03月06日 星期二 20时01分58秒
To: Zhengwang Ruan
Subject: Re: [PATCH 2/2 v2] Staging:android: Initialise buffer and
buffer_size
before used
On Tue, Mar 6, 2012 at 6:36 PM, Zhengwang Ruan<[email protected]> wrote:
GCC warns 'buffer' and 'buffer_size' are used with being uninitialized, and
'buffer' is used as returned value, and 'buffer_size' is initialized using
uninitialized_var to clear warning.
Why do you clear the warning on buffer_size with uninitialized_var()
but not on buffer?
struct binder_buffer *buffer;
size_t buffer_size;
struct rb_node *best_fit = NULL;
I see 'best_fit' is initialized by being directly assigned a NULL
pointer, I think it should be better to initialize pointer in this way.
Neither variable is used before being initialized.
I got the following compiling warning against buffer ans buffer_size:
drivers/staging/android/binder.c:719:24: warning: ‘buffer’ may be used
uninitialized in this function
drivers/staging/android/binder.c:720:9: warning: ‘buffer_size’ may be
used uninitialized in this function
Thanks,
-Zhengwang
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