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Fri, 29 Dec 2023 13:21:31 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id P590AtvHjmXUbgAAD6G6ig (envelope-from ); Fri, 29 Dec 2023 13:21:31 +0000 Date: Fri, 29 Dec 2023 14:21:30 +0100 Message-ID: <87o7e9xhyd.wl-tiwai@suse.de> From: Takashi Iwai To: Zhipeng Lu Cc: Jaroslav Kysela , Takashi Iwai , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] [v2] ALSA: hdsp: fix some memleaks in snd_hdsp_hwdep_ioctl In-Reply-To: <20231227060322.3556052-1-alexious@zju.edu.cn> References: <20231227060322.3556052-1-alexious@zju.edu.cn> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Spam-Level: X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Level: X-Spam-Flag: NO X-Spamd-Result: default: False [-2.86 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DWL_DNSWL_MED(-2.00)[suse.de:dkim]; RCPT_COUNT_FIVE(0.00)[5]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DKIM_TRACE(0.00)[suse.de:+]; MX_GOOD(-0.01)[]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-1.55)[92.09%]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from] Authentication-Results: smtp-out1.suse.de; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=RMnMj0P5; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=SyPFXpl2 X-Spam-Score: -2.86 X-Rspamd-Queue-Id: 432E12209E On Wed, 27 Dec 2023 07:03:20 +0100, Zhipeng Lu wrote: > > When snd_hdsp_load_firmware_from_cache and snd_hdsp_enable_io fails, > the hdsp->fw_uploaded needs to be free.Or there could be memleaks in > snd_hdsp_hwdep_ioctl. > > Fixes: 90caaef6a1ce ("ALSA: hdsp: improve firmware caching") > Signed-off-by: Zhipeng Lu Thanks for the patch, but the patch description is misleading. The allocated object isn't really "leaked"; it's released at the removal of the driver. We may apply some optimization like you did, but then it should have a different description. thanks, Takashi