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[PATCH] tpm: large stack objects
Remove some large objects be declared on the the stack. Signed-off-by: Kylene Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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parent
5b44bd5806
commit
2df7111fc6
@ -255,7 +255,7 @@ static const u8 readpubek[] = {
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static ssize_t show_pubek(struct device *dev, struct device_attribute *attr, char *buf)
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{
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u8 data[READ_PUBEK_RESULT_SIZE];
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u8 *data;
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ssize_t len;
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__be32 *native_val;
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int i;
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@ -266,12 +266,18 @@ static ssize_t show_pubek(struct device *dev, struct device_attribute *attr, cha
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if (chip == NULL)
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return -ENODEV;
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data = kmalloc(READ_PUBEK_RESULT_SIZE, GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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memcpy(data, readpubek, sizeof(readpubek));
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memset(data + sizeof(readpubek), 0, 20); /* zero nonce */
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if ((len = tpm_transmit(chip, data, sizeof(data))) <
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READ_PUBEK_RESULT_SIZE)
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return len;
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if ((len = tpm_transmit(chip, data, READ_PUBEK_RESULT_SIZE)) <
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READ_PUBEK_RESULT_SIZE) {
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rc = len;
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goto out;
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}
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/*
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ignore header 10 bytes
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@ -304,7 +310,10 @@ static ssize_t show_pubek(struct device *dev, struct device_attribute *attr, cha
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if ((i + 1) % 16 == 0)
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str += sprintf(str, "\n");
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}
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return str - buf;
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rc = str - buf;
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out:
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kfree(data);
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return rc;
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}
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static DEVICE_ATTR(pubek, S_IRUGO, show_pubek, NULL);
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@ -330,7 +339,7 @@ static const u8 cap_manufacturer[] = {
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static ssize_t show_caps(struct device *dev, struct device_attribute *attr, char *buf)
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{
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u8 data[READ_PUBEK_RESULT_SIZE];
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u8 data[sizeof(cap_manufacturer)];
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ssize_t len;
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char *str = buf;
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