From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nayna Jain Subject: [PATCH v6 9/9] tpm: cleanup of printk error messages Date: Mon, 14 Nov 2016 05:00:56 -0500 Message-ID: <1479117656-12403-10-git-send-email-nayna@linux.vnet.ibm.com> References: <1479117656-12403-1-git-send-email-nayna@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1479117656-12403-1-git-send-email-nayna-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tpmdd-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: tpmdd-devel@lists.sourceforge.net This patch removes the unnecessary error messages on failing to allocate memory and replaces pr_err/printk with dev_dbg/dev_info as applicable. Suggested-by: Jason Gunthorpe Signed-off-by: Nayna Jain --- drivers/char/tpm/tpm_acpi.c | 16 ++++------------ drivers/char/tpm/tpm_of.c | 29 +++++++++-------------------- 2 files changed, 13 insertions(+), 32 deletions(-) diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c index fa30c969..ddbaef2 100644 --- a/drivers/char/tpm/tpm_acpi.c +++ b/drivers/char/tpm/tpm_acpi.c @@ -60,11 +60,8 @@ int read_log_acpi(struct tpm_chip *chip) status = acpi_get_table(ACPI_SIG_TCPA, 1, (struct acpi_table_header **)&buff); - if (ACPI_FAILURE(status)) { - printk(KERN_ERR "%s: ERROR - Could not get TCPA table\n", - __func__); + if (ACPI_FAILURE(status)) return -EIO; - } switch(buff->platform_class) { case BIOS_SERVER: @@ -78,25 +75,20 @@ int read_log_acpi(struct tpm_chip *chip) break; } if (!len) { - printk(KERN_ERR "%s: ERROR - TCPA log area empty\n", __func__); + dev_warn(&chip->dev, "%s: TCPA log area empty\n", __func__); return -EIO; } /* malloc EventLog space */ log->bios_event_log = kmalloc(len, GFP_KERNEL); - if (!log->bios_event_log) { - printk("%s: ERROR - Not enough Memory for BIOS measurements\n", - __func__); + if (!log->bios_event_log) return -ENOMEM; - } log->bios_event_log_end = log->bios_event_log + len; virt = acpi_os_map_iomem(start, len); - if (!virt) { - printk("%s: ERROR - Unable to map memory\n", __func__); + if (!virt) goto err; - } memcpy_fromio(log->bios_event_log, virt, len); diff --git a/drivers/char/tpm/tpm_of.c b/drivers/char/tpm/tpm_of.c index 22b8f81..3af829f 100644 --- a/drivers/char/tpm/tpm_of.c +++ b/drivers/char/tpm/tpm_of.c @@ -31,40 +31,29 @@ int read_log_of(struct tpm_chip *chip) log = &chip->log; if (chip->dev.parent->of_node) np = chip->dev.parent->of_node; - if (!np) { - pr_err("%s: ERROR - IBMVTPM not supported\n", __func__); + if (!np) return -ENODEV; - } sizep = of_get_property(np, "linux,sml-size", NULL); - if (sizep == NULL) { - pr_err("%s: ERROR - SML size not found\n", __func__); - goto cleanup_eio; - } + if (sizep == NULL) + return -EIO; + if (*sizep == 0) { - pr_err("%s: ERROR - event log area empty\n", __func__); - goto cleanup_eio; + dev_warn(&chip->dev, "%s: Event log area empty\n", __func__); + return -EIO; } basep = of_get_property(np, "linux,sml-base", NULL); - if (basep == NULL) { - pr_err("%s: ERROR - SML not found\n", __func__); - goto cleanup_eio; - } + if (basep == NULL) + return -EIO; log->bios_event_log = kmalloc(*sizep, GFP_KERNEL); - if (!log->bios_event_log) { - pr_err("%s: ERROR - Not enough memory for BIOS measurements\n", - __func__); + if (!log->bios_event_log) return -ENOMEM; - } log->bios_event_log_end = log->bios_event_log + *sizep; memcpy(log->bios_event_log, __va(*basep), *sizep); return 0; - -cleanup_eio: - return -EIO; } -- 2.5.0 ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi