From ebc5f62b76ad540ff7b3e438506638009e7812a6 Mon Sep 17 00:00:00 2001 From: Inaky Perez-Gonzalez Date: Thu, 3 Sep 2009 15:53:30 -0700 Subject: [PATCH] wimax/i2400m: retry loading firmware files in sequence The i2400m firmware loader is given a list of firmware files to try to load by the probe() function (which can be different based on the device's model / generation). Current code didn't attempt to load, check and try to boot with each file, but just to try to load if off disk. This is limiting in some cases, where we might want to try to load a firmware and if it fails to load onto the device, just fall back to another one. This changes the behaviour so all files are tried for being loaded from disk, checked and uploaded to the device until one suceeds in bringing the device up. Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/fw.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index 798564eb0e99..55fe011a9633 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -1288,7 +1288,7 @@ error_dev_rebooted: */ int i2400m_dev_bootstrap(struct i2400m *i2400m, enum i2400m_bri flags) { - int ret = 0, itr = 0; + int ret, itr; struct device *dev = i2400m_dev(i2400m); const struct firmware *fw; const struct i2400m_bcf_hdr *bcf; /* Firmware data */ @@ -1297,32 +1297,31 @@ int i2400m_dev_bootstrap(struct i2400m *i2400m, enum i2400m_bri flags) d_fnstart(5, dev, "(i2400m %p)\n", i2400m); /* Load firmware files to memory. */ - itr = 0; - while(1) { + for (itr = 0, bcf = NULL, ret = -ENOENT; ; itr++) { fw_name = i2400m->bus_fw_names[itr]; if (fw_name == NULL) { dev_err(dev, "Could not find a usable firmware image\n"); ret = -ENOENT; - goto error_no_fw; + break; } + d_printf(1, dev, "trying firmware %s (%d)\n", fw_name, itr); ret = request_firmware(&fw, fw_name, dev); - if (ret == 0) - break; /* got it */ - if (ret < 0) + if (ret < 0) { dev_err(dev, "fw %s: cannot load file: %d\n", fw_name, ret); - itr++; + continue; + } + bcf = (void *) fw->data; + i2400m->fw_name = fw_name; + ret = i2400m_fw_check(i2400m, bcf, fw->size); + if (ret >= 0) { + ret = i2400m_fw_dnload(i2400m, bcf, fw->size, flags); + if (ret >= 0) + break; + } else + dev_err(dev, "%s: cannot use, skipping\n", fw_name); + release_firmware(fw); } - - bcf = (void *) fw->data; - i2400m->fw_name = fw_name; - ret = i2400m_fw_check(i2400m, bcf, fw->size); - if (ret < 0) - goto error_fw_bad; - ret = i2400m_fw_dnload(i2400m, bcf, fw->size, flags); -error_fw_bad: - release_firmware(fw); -error_no_fw: d_fnend(5, dev, "(i2400m %p) = %d\n", i2400m, ret); return ret; } -- 2.20.1