Messages in this thread Patch in this message | | | Date | Fri, 29 Apr 2005 00:54:44 +0200 (CEST) | From | Jesper Juhl <> | Subject | [PATCH] ppp: remove redundant NULL pointer checks before kfree & vfree |
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kfree() and vfree() can both deal with NULL pointers. This patch removes redundant NULL pointer checks from the ppp code in drivers/net/
Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> ---
drivers/net/ppp_deflate.c | 6 ++---- drivers/net/ppp_generic.c | 12 ++++-------- 2 files changed, 6 insertions(+), 12 deletions(-)
--- linux-2.6.12-rc2-mm3-orig/drivers/net/ppp_deflate.c 2005-04-05 21:21:33.000000000 +0200 +++ linux-2.6.12-rc2-mm3/drivers/net/ppp_deflate.c 2005-04-29 00:44:26.000000000 +0200 @@ -87,8 +87,7 @@ static void z_comp_free(void *arg) if (state) { zlib_deflateEnd(&state->strm); - if (state->strm.workspace) - vfree(state->strm.workspace); + vfree(state->strm.workspace); kfree(state); } } @@ -308,8 +307,7 @@ static void z_decomp_free(void *arg) if (state) { zlib_inflateEnd(&state->strm); - if (state->strm.workspace) - kfree(state->strm.workspace); + kfree(state->strm.workspace); kfree(state); } } --- linux-2.6.12-rc2-mm3-orig/drivers/net/ppp_generic.c 2005-04-11 21:20:47.000000000 +0200 +++ linux-2.6.12-rc2-mm3/drivers/net/ppp_generic.c 2005-04-29 00:46:00.000000000 +0200 @@ -2510,14 +2510,10 @@ static void ppp_destroy_interface(struct skb_queue_purge(&ppp->mrq); #endif /* CONFIG_PPP_MULTILINK */ #ifdef CONFIG_PPP_FILTER - if (ppp->pass_filter) { - kfree(ppp->pass_filter); - ppp->pass_filter = NULL; - } - if (ppp->active_filter) { - kfree(ppp->active_filter); - ppp->active_filter = NULL; - } + kfree(ppp->pass_filter); + ppp->pass_filter = NULL; + kfree(ppp->active_filter); + ppp->active_filter = NULL; #endif /* CONFIG_PPP_FILTER */ kfree(ppp);
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